Quote:
Originally Posted by oil pan 4
NiMH aren't going to work unless you have a ton of them.
I don't have any pictures because I have not made it yet. I am going to get 28 A123 cells and put them together and make a car battery.
http://ecomodder.com/forum/showthrea...ies-18547.html
Here is what I got so far. I'm using a 20 cell LiFePO4 battery in the car, I didn't build it but I can build the next one. |
Have a look here:
12.8V (12V) LiFePO4 Battery Packs
or here:
LiFePO4 Cells or here
3.2V LiFePO4 Single Cells (1C-30C Rate)
Their LiFePO4 packs come as large as 200 AH (amp hours). That's 200 amps of draw for an hour, or one amp for 200 hours. Your typical lead acid deep cycle in a size for a good size pickup or large old school car is about 60 AH so anywhere from about 40 AH up is a very capable battery, depending on what your needs are.
The cells in the pack I selected have an impulse discharge current (read "cranking amps") of 400A for <10 sec. Pack's total rated capacity: 40 AH (amp hours).
BatterySpace.com sells individual cells for those who will build their own packs. Also sells made up packs, with and without the protection circuit modules. Also sells cell chemistry-appropriate chargers at very reasonable prices. They also have full fledged BMS (Battery Management System) available if that's your preference.