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Cheap diy dual battery setup

AndySpill

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@TabarnaCarl of course the need for a cooler in freezing ambient temperatures is moot, but if you have other appliances you seek to run of a second battery and plan to operate them in freezing temperatures, a LiFEPO4 battery *might* not be right for you.

Arguably engine bay heat, or if installed in the cabin, cabin heat, may bring the battery to adequate temperatures to charge, and some LiFEPO4's come with or people have them work with heaters, but...just sayin.
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TabarnaCarl

TabarnaCarl

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@TabarnaCarl of course the need for a cooler in freezing ambient temperatures is moot, but if you have other appliances you seek to run of a second battery and plan to operate them in freezing temperatures, a LiFEPO4 battery *might* not be right for you.

Arguably engine bay heat, or if installed in the cabin, cabin heat, may bring the battery to adequate temperatures to charge, and some LiFEPO4's come with or people have them work with heaters, but...just sayin.
Freezing temperatures? It's currently 40c or 104f right now here lol
 

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@TabarnaCarl of course the need for a cooler in freezing ambient temperatures is moot, but if you have other appliances you seek to run of a second battery and plan to operate them in freezing temperatures, a LiFEPO4 battery *might* not be right for you.
Freezing temps are only an issue for charging, not using / discharging.
 

AndySpill

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Freezing temps are only an issue for charging, not using / discharging.
Agreed. As sure as what was once hot again @TabarnaCarl, seasonally, becomes cold. If you don't need the battery in the Winter, great. Bring it inside and put it on a LiFEPO4 trickle charger.
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