33 replies to this topic

[Redfish]

Just FYI, there now appear to be at least 3 large battery manufacturers producing 100ah Group 31 low temperature batteries (that is, with internal, BMS-driven heating elements):

 

Battle Born (see above)

LifeBlue 

RELION

 

Of interest, the Battle Born set-up incorporates a manual on/off switch. Curiously, LifeBlue claims their battery can be discharged and charged down to a battery temperature of -4F (-20C).

 

Documentation is a bit lacking for all 3, with Battle Born being the most complete. 

[kmcintyre]

rando, I have a DIY 280 Ah (thanks to you) with the Xiaoxiang BMS, so I can control pretty much everything.

 

I only have a 120Ah DIY battery w/ that BMS too and made my own.  I've sent my notes to a few people on what I used and hope they were helpful.  Pretty inexpensive to make your own and there's so many parameters you can set (along w/ the DCtoDC charger it's overwhelming).  

[chingchangchop]

Not sure if anyone has heard of this brand but Canbat is producing lithium batteries up here in Canada with an internal heater controlled by the BMS. The price seems steep though.

https://www.canbat.c...ithium-battery/

[Wallowa]

Any comments on this approach, pros-cons, to using Li batteries in cold temps.?  Has anyone used a heated battery?   BMS protects the BB in several ways but does not allow charging below a set temp.

 

On my ski trip at 12F battery temp my AGMs pretty much conked out...of course 4 inches of snow on the panels did not help..   And seldom seeing any sun...

 

https://battlebornba...ed-battery-kit/

 

 

Thanks...Phil

Edited by Wallowa, 09 March 2021 - 01:51 AM.