• Have you tried out dark mode?! Scroll to the bottom of any page to find a sun or moon icon to turn dark mode on or off!

diy solar

diy solar

Empty battery instantly at 14.5v when charging

Yes that is my guess atm aswell, battery is now at friends house near the radiator, we let it sit there for a day and try again. We have been quite a few times in cold weathers with the battery (-10c) and no problems at all, but I guess this was the first time for the battery to have low voltage and cold temperature (-5c) combined.
I thought I'd share something I only learned two days ago...

Heated batteries only power their heaters from charging current. If I had known this 2 years ago when shopping, my RV batteries would be heated. Instead, I avoided buying heated batteries because I thought it would impact capacity when boondocking.

If a battery is in low-temperature protection mode and a charger is attached, the battery will run the heaters from the charger until it's warm enough to begin charging the cells. Makes perfect sense, but I didn't understand it this way and no vendors seem to explain that's how their heating works.

Just sharing this in case a new battery is in your future...
 
Yes that is my guess atm aswell, battery is now at friends house near the radiator, we let it sit there for a day and try again. We have been quite a few times in cold weathers with the battery (-10c) and no problems at all, but I guess this was the first time for the battery to have low voltage and cold temperature (-5c) combined.

The voltage drops abit (12.3-12.4) when under some load, but Im abit scared of trying higher loads on the battery atm.
When the battery was -10c, did you happen to and charge it?
 
I thought I'd share something I only learned two days ago...

Heated batteries only power their heaters from charging current. If I had known this 2 years ago when shopping, my RV batteries would be heated. Instead, I avoided buying heated batteries because I thought it would impact capacity when boondocking.

If a battery is in low-temperature protection mode and a charger is attached, the battery will run the heaters from the charger until it's warm enough to begin charging the cells. Makes perfect sense, but I didn't understand it this way and no vendors seem to explain that's how their heating works.

Just sharing this in case a new battery is in your future...
This makes perfect sense, next lifepo will definitely be self heating one
 
Well they asked a lot of questions from renogy support, had to provide them with a video and photos aswell but in the end they asked if I want them to send new battery or give refund, I went with refund. They were also rather quick with their answers so I can say I am quite pleased since I was expecting that I needed to send my battery to them for inspection and wait a long time for anything to happen.
 
Well they asked a lot of questions from renogy support, had to provide them with a video and photos aswell but in the end they asked if I want them to send new battery or give refund, I went with refund. They were also rather quick with their answers so I can say I am quite pleased since I was expecting that I needed to send my battery to them for inspection and wait a long time for anything to happen.
So warming it up at your friend's house didn't recover the battery?
 

diy solar

diy solar
Back
Top