Quote:
Originally Posted by teoman
I have been pondering on this for a long while. And the only advantage that lithiums have is their ability to deliver a lot of current and their ability to give all their stored energy while in use (and after that they kill themselves).
They already have limited capacity, and with super caps their high amp abilities are not used.
The more i think of it, the more using a very small deep cycle lead acid battery makes sense.
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You didn't even mention the primary advantages of lithium-ion batteries:
1. Weight savings due to much higher energy density
2. Space (volume) saving due to much higher energy density
That said, most people would likely be better off using a small lead acid battery paired with a supercap.
LiFePO4 is ideal for my Prius since it lives inside the temperature controlled cabin, doesn't get deeply discharged (no starter motor), and the OEM battery is more expensive.