400d Offline Upload & Sell: Off
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The Mobil is 7Ah, and the Mobil A2R/L is 12Ah SLA. You can find replacement LiFePO4 battery with exact dimension on ebay or batteryspace.com. I recommend a multi-chemistry charger, you can buy one from RC Accessory (http://bit.ly/1awenzh), or knock-offs of the Bantam on ebay-which are cheap and functional (http://bit.ly/1b8yOlF). Charging is very simple, select LiFePO4 on the charger and connect the crocodile clips to the LiFePO4 cell terminals.
The LiFePO4 cells can handle heavy load, I jumped started my car with the 4 cells pack in the pic below, it is a 4s1p 10Ah pack. I made it before there were identical LiFePO4 replacement cells on the market. My LiFePO4 pack takes off 5.2lbs off the A2R. The A2Rs I have, each have 2 35A auto fuses, this gives you an idea what's the surge load when the pack is recycling.
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