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Topic: lithium batteries- drop in  (Read 3908 times) previous topic - next topic

Re: lithium batteries- drop in

Reply #60
I did the math on this and put in 3 new 8d agm's.  I feel alright with my choice ;) We aren't prolific boondockers though and I don't mind the inefficient charging using my little $150 sportsman generator that gets 10 hours on a soda can's worth of gasoline.  That said if the Prosine 2.5 fails near end of battery life I'd make the upgrade.  For any of those considering anything other than LiFePO4 I wouldn't.  People who make the DIY powerwalls out of old laptop batteries (incredibly economical!) sometimes have fires.  If I made such a thing I would build it in its own structure.

Re: lithium batteries- drop in

Reply #61
I did the math on this and put in 3 new 8d agm's.  I feel alright with my choice ;) We aren't prolific boondockers though and I don't mind the inefficient charging using my little $150 sportsman generator that gets 10 hours on a soda can's worth of gasoline.  That said if the Prosine 2.5 fails near end of battery life I'd make the upgrade.  For any of those considering anything other than LiFePO4 I wouldn't.  People who make the DIY powerwalls out of old laptop batteries (incredibly economical!) sometimes have fires.  If I made such a thing I would build it in its own structure.
A lot of different chemistry's. Make sure you know what your talking about before you claim fires.. Any documents showing a LIFEPO4 fire?

Re: lithium batteries- drop in

Reply #62
I did the math on this and put in 3 new 8d agm's.  I feel alright with my choice ;) We aren't prolific boondockers though and I don't mind the inefficient charging using my little $150 sportsman generator that gets 10 hours on a soda can's worth of gasoline.  That said if the Prosine 2.5 fails near end of battery life I'd make the upgrade.  For any of those considering anything other than LiFePO4 I wouldn't.  People who make the DIY powerwalls out of old laptop batteries (incredibly economical!) sometimes have fires.  If I made such a thing I would build it in its own structure.
Agree with you, appears all the big names in rv lithium batteries, are using LIFEPO4 now.
https://www.youtube.com/watch?v=gOqQp2Xjr6U

Re: lithium batteries- drop in

Reply #63
A lot of different chemistry's. Make sure you know what your talking about before you claim fires.. Any documents showing a LIFEPO4 fire?

Re-read - I was speaking of daring to use other chemistries ;)  Most of the people doing DIY powerwalls are using recycled 18650 cells using one of the other more volatile chemistries.  If you use lifepo4 you could probably make it work with the xantrex charger and some careful attention.

 

Re: lithium batteries- drop in

Reply #64
Victron charger .. victron controller .. dropped in the batteries and all I do is check the voltage.. but it's a waste of time for me. Batteries have bms and solar. Honestly have done nothing but use them.. so far it's been great . Sorry for the misread .. lifepo4 is the safest way to go.. that I know of. Not sure on the other chemistry