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Old 01-26-2017, 09:46 PM   #263 (permalink)
redpoint5
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Quote:
Originally Posted by AlexanderB View Post
I looked what hobbyking has on offer nowadays, and found this:
https://hobbyking.com/en_us/turnigy-...case-pack.html
5Ah, and a 70C (-->350A) 10 second burst rating, and only 32 bucks. For a bigger engine, just use two. I guess I'll have to buy quickly before you guys buy 'em all.
Not sure that would be a good fit for 12v vehicle battery replacement. The reason people choose LiFePO4 despite the lower energy density is that a 4s configuration very closely matches the voltage of the lead-acid battery and alternator output of a vehicle. Not only that, but it's more tolerant of the non-managed charge/discharge cycles that the battery would be exposed to.

You would probably need to build a charge circuit to run the battery you listed, and it might be damaged by the low voltage since it wants to be at 15v.
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