Lithium polymer (LiPo) is all the rage now because the chemistry is remarkably stable during high current charge and discharge cycles. Additionally, the discharge curve is basically a horizontal line until the safety circuit kicks in around 3v.
Even when core temps rise during usage, the LiPo chemistry retains its efficiency with minimal (if any) chemical memory over the long term.
This was something we could only dream about several years ago and nickel metal hydride (NiMH) was as close as we could get once the NiCad batteries were phased out.
As long as those LiPo batteries are cared for properly, they will last many years and thousands of charge/ discharge cycles.
Last edited by Poor Richard; 08-15-2018 at 11:37 AM.
Reason: Corrected the voltage
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