About Payment 
 Shipping & Cost
 Battery SDS
 Battery Terminology
 Battery Knowledge
Privacy Policy
 Export restrictions


Shopper Award
Security Verified Seal

Category : LiFePO4 Batteries

Lithium Iron Phosphate (LiFePO4, LFE) is kind of Li-Ion rechargeable battery for high power applications, such as EV car , Power Tool and RC hobby.  LFP cells feature with high discharging current, non explosive, long cycle life (>2000@0.2C rate, IEC Standard), but its energy density is lower than normal Li-Ion cell (Li-Co) (higher NiMH cell). Please click Knowledge on LiFePO4 battery to learn more detail.  LFP cell has 3.2V nominal working voltage and shall be cut-off power at 3.6-3.8V per cell during charging. Please see the table below to see comparison between LFP and other rechargeable batteries. LFP battery has the lowest cost if considering its long cycle life

Chemistry Voltage  Energy Density  Working Temp.  Cycle Life  Safety Environmental Cost based on cycle life x wh of SLA
LiFePO4 3.2V >120 wh/kg  -20-60 °C  >2000(0.2C
rate, IEC Standard)
Safe Good

lower than SLA

Lead acid 2.0V > 35wh/kg  -20 - 40°C >200 Safe Not good 1
NiCd 1.2V > 40wh/kg  -20 - 50 °C >1000 Safe Bad 0.7
NiMH 1.2V  >80 wh/kg  -20 - 50 °C  >500 Safe Good 1.2-1.4
LiMnxNiyCozO2 3.7V >160 wh/kg  -20 - 40 °C  >500 better than LiCo OK 1.5-2.0
LiCoO2 3.7V >200 wh/kg  -20 - 60 °C  > 500 Unsafe w/o PCM OK 1.5-2.0

Q: I am trying to charge my battery through Solar Panel. If the battery pack already has the PCB/PCM protection, do I still need the solar charger controller ?
A: Yes, you do need the solar charger controller since it will regulate the voltage from solar panel for your battery pack.

Q: If I want to solar charge LiFePO4/Lithium Ion battery, which already has PCB, would a normal SLA controller work fine?
A: For LiFePO4 / Lithium Ion battery, we always recommend to use LiFePO4/Lithium Ion solar controller. Especially if you are using the battery as UPS (back up power supply).  The Lead Acid solar controller will constantly provide pulse current to the battery, in the long run, it might damage the PCB. So the PCB won't be able to protect the battery when it should be.

LiFePO4 / Lithium Ion solar controller won't provide constant current when the battery is fully charged. So it is much safer and reliable.

Thermal Spread Material used in Battery Pack Assembly
UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
Thermal Abuse Test for IEC62133
Lithium Battery Shipping Regulation
Show & Conference
Lithium Battery Power and Safety, Baltimore MD, Nov 17-19, 2015
The Battery Show, Novi. MI, Sept 15-17, 2015 Booth#1716
Battery Power 2015, Denver, CO, August 5-6, 2015 Booth#29
Next Generation Batteries Conference, San Diego, CA, April 21-22, Booth#9
32nd International Battery Exhibit, Mar.9-12,2015, Florida, Booth #209
More ...
Mailing Lists