Battery Question
Hi, I have a bunch of questions about batteries, invertors, charging, solar panels, etc. So I'll start off with batteries... My TC came equipped with 2 Interstate Marine/RV Deep Cycle SRM-27 b...
Forum Discussion
pianotuna wrote:adamis wrote:
I don't understand these arguments at all...
If you have a LiFePo4 battery and camp in extreme cold weather, move the battery to inside the camper. Problem solved...
Take it out of storage at -37 and let me know how that works for you.
It is fine if one were full time.
I'm still waiting for FWC to describe the power system he uses.
If I were to take mine out of storage at -37, assuming the batteries had some % of charge remaining, I would:
1. Shut off/disconnect any charging devices - solar, shore power, DC-DC charger, no genny running.
2. Start the furnace. My 2 BB batteries are inside the conditioned space and have a heat duct discharge adjacent to the batteries. Let the furnace run for 24 hrs. while monitoring the battery temp via my Victron BM712 and an external digital thermostat next to the batts. My external digital thermo switch, serves a double duty as my Victron DC/DC charger generates considerable heat, so I installed 2 small 4" fans which are set to come on at 30C. My BB batts do not have built in heaters which are available.
3. Once I'm confident the internal battery temp is above 32F/0C, I'd start charging them.
Note: If attempting to charge cold batteries, according Tony discussions with BB, the BB internal battery monitor will disconnect at 25F to prevent damage to the batteries. To reset the internal BM, just disconnect/reconnect the negative battery cable.
On a side note, the coldest I've ever experienced was during an extended business trip to Prince Albert, SK. I'm not sure I'd personally want to camp in that weather but with adequate preparation, it should be possible.
