Jon Nellis
Contributor
OK but is it going to last longer than a lead battery or is it just a waist of money im looking for more burn time.
Cheers Darrell
To simplify what Tobin said...
In a scooter at normal cruise power, the 25Ah LiFe will yield similar runtimes to a 40Ah SLA, because you will not actually get 40Ah out of the SLA battery at higher current loads.
The electro-chemical conversion efficiency of SLA decreases significantly as the current load increases. If you were to discharge a 40Ah SLA battery at 40 amps, you would likely get about 20Ah out of it.
From Alternative Energy eMagazine - A Comparison of Lead Acid to Lithium-ion in Stationary Storage Applications | AltEnergyMag
Hope that helps,
Jon