| Re: Check my electrical math- battery to inverter to Air Con [message #370348 is a reply to message #370334] |
Thu, 11 August 2022 09:03  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma:
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Senior Member |
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Larry,
The main downside of LFP batteries is cold weather charging. You can store and discharge the battery below freezing (0C), but you must not recharge them when the battery temperature is below zero as it will damage them. Most Battery Management Systems (BMS) will prevent charging when the battery temperature is below freezing.
There are cold weather rated LFP batteries. These batteries will use available charging current to power an internal heating pad to raise the temperature of the battery to above freezing first, then the BMS will allow the battery to be charged.
Since a LFP battery likes the temperatures we human like (not too hot and not too cold) and they are safe, many LFP batteries are installed inside the coach. Mine are in the bottom of the closet, right beside the electrical cabinet.
Here is a cold weather rated LFP battery with Bluetooth monitoring.
https://www.ablithium.ca/products#!/PRE-ORDER-12V-100AH-Extreme-Series-Heated-Bluetooth-LiFePo4-Battery-Expected-in-Warehouse-August-25th
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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