I have 4 battery boxes for my LiFePo4 cells. Two hold 8 cells, one holds
12, and the big one holds 28. They are aluminum boxes I had made by
customaluminumboxes.com and I oversized them 2" in all directions. I put
1" foam insulation around the batteries. I bought 10 battery heating
pads from KTA. They're some kind of mica sheets with heating elements in
them sized to fit under a 12v starter battery. I put one each in the
small boxes, 2 in the medium box and 6 in the large box with the cells
sitting on top of them. I heat them from shoreline power when the truck
is plugged in. I figure I want the batteries warm when I leave for
better range and the insulation will help them stay warm during my
travels. They worked great BUT failed partway through the third winter.
My big box had too much flex and the brittle panels broke.
The pads in the little boxes were fine so I replaced the 6 pads in the
big box with two of these silicone rubber heating pads:
http://store.evtv.me/proddetail.php?prod=batheater&cat=16. Very
expensive but flexible. So far they're working well.
--Rick
On 1/3/2017 1:59 AM, ken via EV wrote:
whats a good for heating batteries ?
water bed heater pad ?
What else could be used?
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