Just Batteries
Sponsored by Genie Gadgets
Chemistries
Chemistry Cathode Electrolyte Nominal voltage Open-circuit voltage Wh/kg Wh/L
Li-MnO2 ("CR") Heat-treated manganese dioxide Lithium perchlorate in propylene carbonate and dimethylglyoxime 3 V 3.3 V 280 580
"Li-Mn". The most common consumer grade battery, about 80% of the lithium battery market. Uses inexpensive materials. Suitable for low-drain, long-life, low-cost applications. High energy density per both mass and volume. Operational temperature ranges from -30 °C to 60 °C. Can deliver high pulse currents.[1] With discharge, the internal impedance rises and the terminal voltage decreases. High self-discharge at high temperatures.
Advantages and disadvantages
The LiFePO
4 battery uses a lithium-ion-derived chemistry and shares many advantages and disadvantages with other Lithium-ion battery chemistries. However, there are significant differences.
LFP chemistry offers a longer cycle life than other lithium-ion approaches.
Like nickel-based rechargeable batteries (and unlike other lithium ion batteries)[citation needed], LiFePO4 batteries have a very constant discharge voltage. Voltage stays close to 3.2V during discharge until the battery is exhausted. This allows the battery to deliver virtually full power until it is discharged. And it can greatly simplify or even eliminate the need for voltage regulation circuitry.
Because of the nominal 3.2V output, four cells can be placed in series for a nominal voltage of 12.8V. This comes close to the nominal voltage of six-cell lead-acid batteries. And, along with the good safety characteristics of LFP batteries, this makes LFP a good potential replacement for lead-acid batteries in many applications such as automotive and solar applications.
The use of phosphates avoids cobalt's cost and environmental concerns, particularly concerns about cobalt entering the environment through improper disposal.[7]
LiFePO4 has higher current or peak-power ratings than LiCoO2.[8]
The energy density (energy/volume) of a new LFP battery is some 14% lower than that of a new LiCoO2 battery.[9] Also, many brands of LFPs, as well as cells within a given brand of LFP batteries, have a lower discharge rate than lead-acid or LiCoO2.[citation needed] Since discharge rate is a percentage of battery capacity a higher rate can be achieved by using a larger battery (more Ampere-hours) if low current batteries must be used. Better yet, a high current LFP cell (which will have a higher discharge rate than a lead acid or LiCoO2 battery of the same capacity) can be used.
LiFePO4 cells experience a slower rate of capacity loss (aka greater calendar-life) than lithium-ion battery chemistries such as LiCoO2 cobalt or LiMn2O4 manganese spinel lithium-ion polymer batteries or lithium-ion batteries.[10] After one year on the shelf, a LiFePO
4 cell typically has approximately the same energy density as a LiCoO2 Li-ion cell, because of LFP's slower decline of energy density. Thereafter, LiFePO
4 likely has a higher energy density.
Specifications
Lithium Iron / Li-ion Batteries
Specific energy density: 100 to 250 W·h/kg (360 to 900 kJ/kg)
Volumetric energy density: 250 to 620 W·h/L (900 to 1900 J/cm³)
Specific power density: 300 to 1500 W/kg (@ 20 seconds and 285 W·h/l)
Because lithium-ion batteries can have a variety of positive and negative electrode materials, the energy density and voltage vary accordingly.
The open circuit voltage is higher than aqueous batteries (such as lead acid, nickel-metal hydride and nickel-cadmium).[62] Internal resistance increases with both cycling and age.Rising internal resistance causes the voltage at the terminals to drop under load, which reduces the maximum current draw. Eventually increasing resistance means that the battery can no longer operate for an adequate period.
Batteries with a lithium iron phosphate positive and graphite negative electrodes have a nominal open-circuit voltage of 3.2 V and a typical charging voltage of 3.6 V. Lithium nickel manganese cobalt (NMC) oxide positives with graphite negatives have a 3.7 V nominal voltage with a 4.2 V maximum while charging. The charging procedure is performed at constant voltage with current-limiting circuitry (i.e., charging with constant current until a voltage of 4.2 V is reached in the cell and continuing with a constant voltage applied until the current drops close to zero). Typically, the charge is terminated at 3% of the initial charge current. In the past, lithium-ion batteries could not be fast-charged and needed at least two hours to fully charge. Current-generation cells can be fully charged in 45 minutes or less.
Cautions
Li-ion cells are very sensitive to charging characteristics please avoid mis-handling.
Make sure user has enough knowledge on how rechargeable batteries work during charging, discharging, and assembly before use.
We are not responsible for any damage caused by misuse or mishandling of these Li-Ion batteries
Strongly suggest that you use our smart Li-Ion battery charger to recharge the battery pack Never use conventional DC adapter to charge the battery.
Please don't make parallel connection with more than three modules to avoid uneven charge
Water bottle Li-ion Battery Pack with BMS/Charger
(24V 10AH / 36V 9Ah / 36V 11Ah )
* Water Bottle Style Aluminum Casing battery with Switch/Key also battery gauge
* BMS (BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* Weight: 3.5Kg-4Kgs
* Capacities: 24V 10AH & 36V/9AH & 36V/11AH
* Max Discharge Current: 30A
* Max Continuous Discharge Current: 15A
* Charging Cycles: >800+ times
* Reference Ranges(full electric mode): 30Km-45Km
* Dimensions: 330mm L × φ93 mm C (36V/9AH & 24V/10AH)
420mm L × φ100 mm C (36V/11AH)
Package Content
1 x 36V water bottle lithium ion battery
1 x 36V 100V~240VAC 50/60Hz 2 A charger
Net weight: 4Kg (with charger + discharge wire + Sliding Rack)
Package Type: Cardboard Box
WATER TUBE TYPE BATTERY
Noticed: Water bottle battery with controller box type is available .
Prices: Including Shipping
36V 9Ah £290
36V 11Ah £305
Shipped Direct to your door by DHL
On this page you will find the batteries you will need for the Electric Conversion Kit you have bought or maybe you are thinking about buying or need a replacement for an old battery on your E-Bike or E-Kit.
Prices include shipping direct to your door by DHL/FedEx/TNT you will receive tracking from us as soon as the agent sends it, and a text when it is about to arrive, so please let us have a contact number in the checkout or via email.
Lithium batteries are complex and come in many different types, Lifpo4, Li-ion and Li-Mn to name just 3, these 3 are the most commonly used for E-Bikes, E-Kits and Segways.
I have tried to include enough information so you understand what it is you are buying, however should you wish more information i have an information page dedicated to E-kits which is filled with battery technology just click "E-Kit Technology" Above...or for the real tech heads click on the "Battery University" Logo at the top of this page.
The features of the electric bike lithium battery:
1, Safe: The li-ion electric bicycle battery is more safe and reliable than the lead acid one. It does not explode or burn when bumped, heavy stressed, needle pricked, short circuited, overcharged or overheated.
2,Environment-friendly: Accredited with CE certificate and no hazardous or noxious substances.
3, Small in volume and light in weight: The li-ion electric bicycle battery is about 1/2 the volume and 1/3 the weight of the lead-acid battery.
4, Steady performance: high power output,1C continuous,3C pulse for normal cells and 20 C for special design. low self-discharge rate, less than3%monthly.
5, Long cycle life: between 800-1500 cycles with capacity staying at 80% min.
6, Lower average price per year: the average price per year is less than 3 lead-acid batteries.
7, No memory effect: always ready for charge and use, with no need to wait for a full discharge.
7, Wide temperature range: Available for use when the temperature ranges from 10°C to -55°C .
9, Intelligent charge system: voltage of each cell can be detected ,each cell can be protected against overcharge, over voltage ,short circuit and overheat , and so that battery can be charged balance. The capacity of readout power volume each battery has 5LED lights to readout the capacity of the battery.
24V/48V/60V/72V 10ah/15ah/20ah/30ah LiFePO4 batteryfor Electric Bike,Vehicle,car,golf car.
1High quality long life span lifepo4 storage battery pack
2.Factory located: Jiangsu of China
3.Quality: A team is composed of hundreds QC inspectors to control the progress quality .
4.Application: Solar energy system ,UPS ,electric vehicle ,electric bike ,e-tool ,electric forklift ,etc .
Features:
1Safety : currently the safest li-iron battery, CE UL approved ,none fire ,none explosive.
2.Environment friendly , no toxic material contained.
3.Long life cycle ,more than 2000 cycle in 0.5C-1C discharge.
4.No memory effect: can be recharged any time, no reduction of capacity.
5.Broad operation temperature -20---70 centigrade.
6.Small in size and light in weight.: Compare with SLA battery ,1/2 size of lead acid battery,70% size of Ni-MH Ni-Cd battery. 1/2 weight of lead acid battery.
The features of the LiFePO4 electric motorcycle batteries:
1, Safe: The iron-lithium electric cycyle battery is more safe and reliable than the lead acid one. It does not explode or burn when bump, heavy stress, needle pricking, short circuit, overcharge and overheat.
2,Environment-friendly: Accredited with CE, with out any hazardous and noxious substances.
3, Small in volume and light in weight: The iron-lithium electric battery is about 1/2 the volume and 1/3 the weight of the lead-acid battery.
4, Steady performance: high power output,1C continuous,3C pulse for normal cells and 20 C for special design. low self-discharge rate, less than3%monthly.
5, Long cycle life: over 1500 cycles with capacity staying at 80% min.
6, Lower average price per year: the average price per year is less than the lead-acid battery.
7, No memory effect: always ready for charge and use, with no need to charge after a full discharge.
7, Wide temperature range: Available for use when the temperature ranges from 20°C to -70°C .
9, Intelligent charge system: voltage of each cell can be detected ,each cell can be protected against overcharge, over voltage ,short circuit and overheat , and so that battery can be charged balance. The capacity of readout power volume :each battery has 5LED lights to readout the capacity of the battery.
Electric bike batteries Compare materials.
Specifications
* Weight: 3.5Kgs
* Capacity: 36V/10AH
* Max Discharge Current: 30A
* Max Continuous Discharge Current: 15A
frog type
* Frog Style Plastic Casing battery with Key also battery gage.
* BMS (BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* With controller box which available for 200w-350w motor controller
* Weight: 3.5Kgs
* Capacity 36V/10AH
* Max Discharge Current: 30A
* Max Continuous Discharge Current: 15A
* Charging Cycles: >800 times
* Reference Ranges(full electric mode): 30Km-35Km
* Dimensions: Dimensions: 300mm L × 145 mm W × 150mm H
Package Content
1 x 36V Frog lithium ion battery
1 x 36V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 4Kg
CE approved ! 36h 10ah frog type ebike lithium battery
Price including Shipping
£253
Rack Li-Mn Battery Pack with BMS/Charger 48V 10AH / 48V 12AH
* BMS(BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* Weight: 5.2Kgs
* Capacities: 48V/10AH
* Max Discharge Current: 40A
* Max Continuous Discharge Current: 20A
* Charging Cycles: >800 times
* Reference Ranges(full electric mode): 40Km
* Dimensions: 325mm L × 150 mm W × 84 mm H
Package Content
1 x 48V 10Ah rack lithium ion battery
1 x 48V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 6.3Kg (with charger + slippery plate + discharging wire)
36V 10Ah Rack Li-Mn Battery Pack with BMS/Charger.12Ah 14Ah
* BMS (BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* With controller box which available for 200w-350w motor controller
* Weight: 5.2Kgs
* Capacities: 36V/10AH
* Max Discharge Current: 40A
* Max Continuous Discharge Current: 20A
* Charging Cycles: >800 times
* Reference Ranges(full electric mode): 35Km
* Dimensions: 330mm L × 150 mm W × 60 mm H
Package Content
1 x 36V 10Ah rack lithium ion battery
1 x 36V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 4.8Kg (with charger + slippery plate + controller box)
Flexible Style Li-Mn Battery Pack with BMS/Charger/Battery bag
(48V 20AH or Bigger Capacity )
* BMS(BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 2A Universal Charger Included
* Good looking battery bag
* High-Quality Anderson Power pole Connector
* Weight: below 8.0Kgs
* Capacities: 48V/20AH
* Max Discharge Current: 60A
* Max Continuous Discharge Current: 30A
* Charging Cycles: >800 times
* Reference Ranges(full electric mode): >60Km
* Dimensions: 147mm L × 203 mm W × 140mm H
Package Content
1 x 48V 20Ah lithium ion battery
1 x 48V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 9Kg (with charger + battery bag )
36V10AhRack Lifep04Battery Pack with BMS/Charger.
* BMS (BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* With controller box which available for 200w-350w motor controller
* Weight: 5.2Kgs
* Capacities: 36V/10AH
* Max Discharge Current: 40A
* Max Continuous Discharge Current: 20A
* Charging Cycles: >1500 times
* Reference Ranges(full electric mode): 35Km
* Dimensions: 370mm L × 150 mm W × 60 mm H
Package Content
1 x 36V 10Ah rack lithium lifep04 battery
1 x 36V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 5.5Kg (with charger + slippery plate + controller box)
48V 10AH Rack Lifep04 Battery Pack with BMS/Charger.
* BMS(BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 1.8A Universal Charger Included
* Weight: 5.6Kgs
* Capacities: 48V/10AH
* Max Discharge Current: 40A
* Max Continuous Discharge Current: 20A
* Charging Cycles: >1500 times
* Reference Ranges(full electric mode): 40Km
* Dimensions: 365mm L × 150 mm W × 84 mm H
Package Content
1 x 48V 10Ah rack lithium lifep04 battery
1 x 48V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 6Kg (with charger + slippery plate + discharging wire)
Flexible Style Lifpo4 Battery Pack with BMS/Charger/Battery bag
(48V 20AH or Bigger Capacity )
* BMS(BATTERY MANAGEMENT SYSTEM) and 100V~240VAC 50/60Hz 2A Universal Charger Included
* Good looking battery bag
* High-Quality Anderson Power pole Connector
* Weight: 13Kgs
* Capacities: 48V/20AH
* Max Discharge Current: 60A
* Max Continuous Discharge Current: 30A
* Charging Cycles: >1500 times
* Reference Ranges(full electric mode): >60Km
* Dimensions: 290mm L × 150 mm W × 150mm H
Package Content
1 x 48V 20Ah lithium ion battery
1 x 48V 100V~240VAC 50/60Hz 1.8A charger
Net weight: 13.5Kg (with charger + battery bag )
Price Including shipping:
48V 10Ah Li-Mn £320
48V 12Ah Li-Mn £350
On Offer: 48V 15Ah Li-Mn same price as the 12Ah ends soon....
Price Including Shipping:
36v 10Ah Li-Mn £290
36V 12Ah Li-Mn £320
36V 14Ah Li-Mn £360
Price including Shipping:
48V20Ah Li-Mn £495
Price Including Shipping:
36V 10Ah Lipo4 £335
Price Including Shipping:
48V 20Ah Lifpo4
£599
Price Including Shipping:
48V 10 Lifpo4 Battery £375
36V 20Ah Lithium Battery £435
60V 30Ah Lithium Battery £623
60V 100Ah Lithium Battery £1599
72V 20Ah Lithium Battery £545
72V 30Ah Lithium Battery £749
For the black DownTube battery,we have below versions.
Prices Include Shipping
36v 10Ah with local brand cell £275
36v 13AH Samsung battery package (2600mAH battery cell ) £ 323
48v 10.4AH Samsung battery package (2600mAH battery cell ) £339
48v 11.6AH Samsuang battery package (29000mAH battery cell) £399
48v 11.6AH Panasonic battery package (2900mAH battery cell) £414
New imported bottle type e-bike battery
48v 10.4ah with Samsung cell
1. Basic Characteristics
Weight ≤3.2 kg
Length 34cm
Working temperature
Charge Temperature 0~45°C
Discharge Temperature-20~65°C
Retention of charge
(store in one month) ≥95%
2. Technical Data
Rated Voltage 48V
Rated Capacity ≥ 10Ah
Battery Resistance ≤100 mΩ
Way of Charge CC/CV
Standard Charge Current 2A
Max Charge Current 5A
Max Charge Voltage 52v
Cell Over Charge
Protection Voltage 52V
Discharge
Standard Discharge Current 10A
Max Discharge Current
20A can be customized
Discharge Cut-off Voltage 30V
Cell Over discharge
Protection Voltage 30V
Cycle Life
1000 times,capacity>60%
3. Safety Test
Short Circuit Safety Test
No fire, No explosion
Overcharge Safety Test
Crush Safety Test
Needling Safety Test
Extrusion Safety Test
130°C High Temperature Safety Test
Advantages:
1, High energy density
2, High working voltage for single battery cells
3, Pollution-free
4, Long cycle life
5, No memory effect
6, Capacity, resistance, Voltage, platform time consistency is
good
7, With short-circuit production function, safe and reliable
8, Factory price& High quality
9, Good consistency, low self discharge
10, Light weight, small size
Price Including Shipping To your home via DHL,FedEx.
Model 48N30
Spec 48V30Ah Rear Rack Battery
Material LiNiCoMnO4
Nominal voltage 48V
Nominal capacity 30Ah
Charge up-limit voltage 54.6V
Standard charge current 6A
Standard discharge current 30A
Max discharge current 56A
Battery pack size 200*200*160mm
Weight 10kg
Protection circuit
Inbuilt,overcharging,over discharging, short circuit etc.
Charging temp. 0 ~ +45℃
Discharging temp -20 ~ +60℃
Cycle life 600times or more
Price £599 Including Shipping, Charger, Rack and Case.
60V 100Ah
72V 30Ah
72V 20Ah
Features:
1、 Laminated LiFePO4 batteries have a large capacity, high discharge plateau and a safe and long cycle life.
2、Our skilled employees and automatic production line mean each of our Laminated LiFePO4 batteries have precise conformance and a stable performance.
3、 CNE has obtained patent on the design of shell of the laminated battery. This enables the battery cell to better release heat and improves the anti-vibration performance. The advantage of the battery shape means it utilises less space but still carries the same capacity as a regular cylindrical battery pack.
4、 CNE is in the process of applying for a patent titled 'the Device of Leaking-proof and Sealing on Pole for EV Li-ion Battery'.This in-house design of connecting the battery tap and shell can effectively prevent any electrolyte escaping the battery and also stop any water getting in. This has greatly improved the operating safety and life of the battery cell.
Application: Electric Vehicles, Large Back-up Power Supply, Large Storage Power Station
Conditioning controversy
There is a popular belief that Li+ batteries need to be "conditioned" before first use. One is told to plug the battery/device into a charger and leave it there for seven or eight hours, even if it's fully charged, perhaps to "saturate the cells". But this may simply be a confusion of the battery software calibration instructions with the "conditioning" instructions for NiCd and NiMH batteries. The software of a typical smart phone, for example, learns how to accurately gauge the battery's life, by watching it discharge, and leaving it on the charger produces a series of "micro discharges" that the software can watch and learn from.
Lithium Ion batteries definitely do not need the "conditioning" of being fully discharged and charged the way NiCd and NiMH batteries do. In fact, there is a similar debate over whether fully discharging an Li+ battery will cause the very sort of problem that is "fixed" by doing so with the older battery types.
Looking after your battery
All our scooters have the latest generation of Lithium batteries with battery management circuitry built into them. This BMC is there to protect against overcharging and over draining the battery cells. It also ensures that all the battery cells charge and discharge evenly giving the whole battery a longer life.
The best way to look after the battery on your scooter is to use regularly. Leaving it discharged is likely to shorten its life. So ride your scooter regularly and recharge it regularly. It's usually lack of use that causes problems.
Never leave your battery discharged for long periods of time. If you are not going to use your Scooter for a while, charge its battery every month anyway. If necessary get a monthly timer so it can be recharged every 4 weeks automatically. That way you can just plug it in and the timer will take care of it for you without you having to worry about it.
When your Scooter is new, fully discharge and re-chargecharge the battery at least once, this conditions the battery cells. After that there is no need to discharge the battery before recharging. There is no memory effect on our batteries so you can top them up at any time, and we recommend that you do this.
In the winter or when it is cold, any battery will become less efficient. This is true of all batteries, you will be aware that after a freezing night on and on cold morning cars can be more difficult to start because the battery has got so cold. It is not quite the same with an lithium battery, but if the battery is allowed to get very cold by being left out in a garage or shed, the battery efficiency will drop considerably. This will result in the scooter feeling a bit slower and the range or distance it will travel before a recharge is required will be reduced.
If you can keep your scooter indoors when the weather is very cold it will not just help the battery and all the moving parts it will run better as well reducing any drag and general wear.
Your electric scooter relies on it's batteries, so look after the battery and it will look after you.
Electric bikes and scooters do need a bit more attention, but these simple precautions will prolong their life, and give you many happy years of use
https://www.youtube.com/user/Intersilmedia?v=zfCm7q-yJ_s
FAQ
1. What are the advantages of Century New Energy (CNE) Li-ion EV batteries?
Single cell has large voltage
The operating voltage of a single Li-ion battery cell is as high as 3.2-3.8V (LiFePO4 is 3.2V), which is three times that of a Ni-Cd cell or Ni-MH cell and two times that of lead-acid battery.
High unit weight energy (wh/kg)
The Li-ion battery has an excellent energy to weight ratio, 150Wh/kg. This is two times higher than that of a Ni-MH battery and four times that of a lead-acid battery. This means, to assemble a like-for-like battery pack with the same energy fewer batteries are required for a Li-ion battery pack than a Ni-MH battery pack or a lead-acid battery pack. This leads to a substantial reduction in battery pack weight and also enhances safety levels.
Long Cycle Life
Based on a Depth of Discharge of 80%, CNE’s LiFePO4 batteries can reach more 2000 cycles while LiMn2O4 batteries and LiCoO2 batteries reach 500 cycles.
Operates within a wide temperature range
Li-Ion batteries are able to operate between -20℃to +55℃.They are ideal for working at low temperatures. Ni-MH batteries and lead-acid batteries have an aqueous solution and their performance will be reduced at a low temperature as the fluidity of the electrolyte will have been affected. CNE has also been working to improving the Li-Ion cathode and electrode materials and is expecting to widen the battery operating temperature from its current level to a range of -20℃to +85℃.
No memory effect
Compared to Ni-Cd batteries, Li-ion cells have no memory effect. This allows them to be recharged or discharged at any time rather than requiring them to be fully charged or fully discharged.
Low self-discharge
The self-discharge rate of Li-ion batteries is approximately 2% when stored at room temperature for one month. Under the same scenario the self-discharge rate of Ni-Cd batteries is 25-30% and Ni-MH batteries is 30-35%.
Fast charge and discharge capability
The maximum constant charge and constant discharge rate of Li-Ion battery is 3C.
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2. What factors affect the consistency of the battery voltage and current?
Production environment
Production of LiFePO4 batteries requires advanced technology and the process is complex. It is necessary to strictly control the production environment’s temperature, humidity and dust levels.
Production equipment
The wide use of automatic equipment results in the production of a higher percentage of consistent batteries. CNE possesses a fully automated Li-ion battery production line which ensures high stability and consistency of battery products.
Control of production process
CNE employees have experience in advanced manufacturing skills. The factory has achieved standardised production. Each production process implements strict quality monitoring and control which ensures our finished goods have high consistency.
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3. What does Century New Energy do to ensure its products meet high safety standards?
To ensure the safety of Li-ion batteries, our technicians have thorough product designs that have considered all aspects of product structure and materials. Our products have also undergone strict safety tests before delivery. Currently our battery products have passed the mandatory safety test of the national 201 laboratory and gained UL approval.
Separator film
The Separator film is comprised of internationally advanced Celgars PP-PE-PP three layer composite membranes. When the temperature reaches 120℃ the PE film will increase the resistance of battery. When the temperature reaches 135℃ the PP will cause cut-off of the interior circuit of the battery. Therefore the temperature will not increase any further.
Adding the additives into the electrolyte
Doing this will increase the resistance of the battery to protect it from any increase in temperature when the battery voltage is higher than 4.2V during charging.
Use of compound structure cell lid
The cell lid has applied nick ex ball structure. This structure allows gas to be released if an increase in battery temperature leads to a chemical reaction which causes it to swell.
Environmental tests
Environmental tests are conducted to mimic potential scenarios the battery will encounter. For example, short circuiting, over-charging, piercing or overheating. Other tests like battery temperature, impact, vibration, drop test are done to assess the strength of the battery performance in different situations.
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4. Do batteries self-discharge when not in use?
Yes, there is a small self discharge with all battery chemistries; however CNE LiFePO4 cells can be stored up to one year without re-charging. To maximise performance it is advised that the cell is recharged after four months of storage. The self discharge is greater under higher storage temperature (from 45oC upwards). Note: It is advisable to monitor the condition and state of charge every month in all circumstances to ensure that batteries are not over discharged.
Please contact us for more information.
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5. How does temperature affect Li-ion batteries?
At a high temperature the capacity will decrease and constant exposure will cause increasing capacity fade. At a low temperature the resistance will be higher reducing the efficiency of charging and discharging. The PCM/BMS will protect the battery pack from short term over or under standard operational temperatures (-10 oC to +60 oC). However it is advisable to keep the operating temperature within -10 oC to +60 oC at all times. The optimum temperature for both long life and performance is around 25 oC.
If your application is designed to work in extreme conditions (lower than -10 oC or higher than +60 oC) contact us for more information.
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6. What should we do with the lithium batteries after 5-6 years?
CNE LiFePO4 batteries can be used for up to 2000 to 2500 cycles (DOD 80%/ 0.5C). If one cycle a day is completed, one battery can last for five to six years and remain 80% of their original capacity. After this time the batteries can be used as a storage power device or be used for the low-end EV market. After termination of the LiFePO4 batteries, material can be recycled. In addition, the battery materials are largely non-polluting.
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7. Can the batteries be deep discharged? How can they be recovered if this happens?
The Lithium Iron Phosphate (LiFePO4) chemistry does not exhibit any ‘memory’ effect in the way other types of batteries do, so remain usable across 100% of capacity. However the batteries must remain above minimum voltage (>2.0V per cell block) to protect the cells from possible reverse currents, once the battery reaches this minimum level it should not be left at this level and must be recovered up to its normal operational voltage as soon as possible. It is recommended that the module/battery is cycled if stored for longer than 4 months even if it is fully charged at the beginning of the storage or non operational period.
Crohn’s and Colitis UK exists to improve life for people affected by Crohn’s and Colitis which can strike at any age (although young people are most at risk) and have a devastating impact on education, work social and family life.
NOTE TO FRAUDSTERS:
WE ARE FULLY AWARE OF VARIOUS SCAMS REGARDING RETURNS OF "FAULTY" PRODUCTS and UNLAWFUL CHARGEBACKS. SINCE THE START OF 2012 WE HAVE TAKEN STRONG MEASURES TO COMBAT THIS. ALL OUR ITEMS ARE MARKED AND CHIPPED IN MORE THAN ONE WAY SO WE WILL KNOW IF YOU HAVE TAMPERED. ALL SERIAL NUMBERS OF ITEMS HAVE BEEN RECORDED BY US ALONG WITH THE MANUFACTURERS. WE HAVE WORKED WITH THE POLICE, MANUFACTURER, EBAY AND PAYPAL. WE HAVE SUCCESSFULLY PROSECUTED ON MORE THAN ONE OCCASION SINCE THE START OF OUR CAMPAIGN. ATTEMPT FRAUD WITH US AT YOUR OWN PERIL. YOU HAVE BEEN WARNED
When ordering products for delivery to countries from outside of the EU you may be subject to import duties and taxes, which are levied once the package reaches the specified destination. Any additional charges for customs clearance must be borne by you; we have no control over these charges. Customs policies vary widely from country to country, so you should contact your local customs office for further information. Additionally, please note that when ordering, you are considered the importer of record and must comply with all laws and regulations of the country in which you are receiving the products. Your privacy is important to us and we would like our international customers to be aware that cross-border deliveries are subject to opening and inspection by customs authorities.However we do employ top agents who will do their best to make the customs experience smooth and painless.
Electric Vehicles 4 You
