02-01-2023, 05:06 AM
I have an issue.
I had a LiFePo4 battery system I built myself. Realizing then that keeping the batteries cool would be a challenge…I built they system so that each of the 16 battery cell packs were placed so that there was 1” between them.
Last summer I had to replace my battery. The new battery is built complete inside a single box. It’s pretty tight in there.
After many issues and long lead times for parts and replacements, I finally had a full function battery with a BMS and Balancer.
This winter, I have discovered that as I turn the heat on in the morning (all electric rig..no propane) the temperature of the battery starts to climb quickly. Typically, the batteries start the morning at about 3-5 degrees (Celsius), and heat up by 8-10 degrees (Celsius) within about 45 minutes.
This is fine for the winter. In fact, great since LiFePo4 should never be charged below zero (Celsius)…so, I get them warmed up before the sun rises. But..what about this summer? LiFePo4 should not be discharged above 40 (Celsius..of course). So when the temps are up to 105f, running the A/C unit would simply cause the BMS to shut the whole system down to protect the battery.
Any ideas so a small A/C that will fit into a space of 6”x4”x3”? I need something that draws very little power, and can keep that compartment cool(er).
I rarely run A/C since the swamp cooler does a great job most of the time. But, in the monsoons the A/C is the only choice because the humidity gets to be pretty high.
Anyone have ideas?
I had a LiFePo4 battery system I built myself. Realizing then that keeping the batteries cool would be a challenge…I built they system so that each of the 16 battery cell packs were placed so that there was 1” between them.
Last summer I had to replace my battery. The new battery is built complete inside a single box. It’s pretty tight in there.
After many issues and long lead times for parts and replacements, I finally had a full function battery with a BMS and Balancer.
This winter, I have discovered that as I turn the heat on in the morning (all electric rig..no propane) the temperature of the battery starts to climb quickly. Typically, the batteries start the morning at about 3-5 degrees (Celsius), and heat up by 8-10 degrees (Celsius) within about 45 minutes.
This is fine for the winter. In fact, great since LiFePo4 should never be charged below zero (Celsius)…so, I get them warmed up before the sun rises. But..what about this summer? LiFePo4 should not be discharged above 40 (Celsius..of course). So when the temps are up to 105f, running the A/C unit would simply cause the BMS to shut the whole system down to protect the battery.
Any ideas so a small A/C that will fit into a space of 6”x4”x3”? I need something that draws very little power, and can keep that compartment cool(er).
I rarely run A/C since the swamp cooler does a great job most of the time. But, in the monsoons the A/C is the only choice because the humidity gets to be pretty high.
Anyone have ideas?
1989 Honeywell motorhome
Ford E350 chassis. 460 engine
Ford E350 chassis. 460 engine