12v Party Bike

Dear Mark Communifi,

One may use lithium iron phosphate (LiFePO4) batteries to achieve both energy density (Ah vs. size) and safety (well-known), with the added benefit of higher charging currents (~1C) and lower charging times when compared to lead-acid (~0.1C typical) batteries.

Another difference is the depth of discharge (DoD), which is almost full (~90%) for LiFePO4, vs. just 40-50% for a deep-cycle lead battery. This directly translates to a lesser Ah battery (price, weight) and fewer charge/discharge cycles over the years, resulting in longer (2-3x) lifetimes (time for Ah to drop to 80% of initial) when compared to the lead-acid types.

Furthermore, all the above advantages would also come in handy, if you are including power-assisted pedalling for your cycle. I thought of writing since I noticed both lithium and LiPO, but not LiFePO4 being mentioned among the responses.

All the best.
 
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