What kind of batteries do we use?
Jack D.
Last Update 2 years ago
We only use Grade A Lithium Battery Cells from Samsung, Panasonic, and LG (18650 or 21700). All of our batteries come with a BMS (Battery Management System).
WHAT ARE THE FUNCTIONS OF A BMS?
Besides protecting your cells being overcharged and over-discharged, a BMS will also try to keep all your cells voltage to be at the same value. This is called cell balancing. At each charge, a good quality BMS, like we use, will balance your cells.
If your BMS don't have cell balancing feature and one of your cells higher voltage than others it will reach 4.05 V earlier than other cells. In that case, BMS will stop charging to prevent overcharging. As you can see your battery isn't fully charged and you will start to see a decrease in your range. In the long run that can cause an up to 50% drop in your range just because your BMS don't work well.
BMS will check these parameters too:
- Temperature
- Short Circuit
- Over Current: Won't let your batteries to be charged at un-safe current.
- Discharge Over Current: Won't let your motor suck juice at high rates which may damage inside chemistry of the battery.
- Arrange communication between the controller of your electric bike and battery.