Lithium RV battery need help
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Elder User
Joined: Oct 2017
Posts: 559
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Lithium RV battery need help
I just purchased a 2020 attitude 3218mm toy hauler.. it comes w one 100amp lithium battery..the sales guy told me one lithium battery is like running two 6 volts...there is an option to add one more 100amp lithium battery and i want it but was wondering if it will be overkill for what I do....I don't full time..I go beach and desert camping about 6-8times a yr at about 4-5day avg.
Mountain Pass
Joined: Dec 2005
Posts: 248
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That is quite a battery to come stock, yes you can run two in parallel, i'm actually looking into adding a 2nd aux bank of 2 Lion batts my self as I now have a residential fridge in mine just for extra capacity. What brand did they put in your trailer? they are expensive but in my mind worth it because of the amount of times you can charge them and you can run them down almost all the way without damage.
Thread Starter
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Elder User
Joined: Oct 2017
Posts: 559
Likes: 4
That is quite a battery to come stock, yes you can run two in parallel, i'm actually looking into adding a 2nd aux bank of 2 Lion batts my self as I now have a residential fridge in mine just for extra capacity. What brand did they put in your trailer? they are expensive but in my mind worth it because of the amount of times you can charge them and you can run them down almost all the way without damage.
Lead Driver
Joined: Jan 2002
Posts: 8,644
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From: Itinerant
Look and see which manufacturer of dropin lfp battery you have. What charger do you have? What is the pt controller set at to charge your battery? Can you disconnect the solar while it's stored? Can you read the soc of the battery, or does it have a bluetooth to see it on your phone?
LFP batteries should not sit at 100% (float) when not in use it for long periods, they are happiest at 40-50% soc, the day before you go charge it. Depending on the charger size it will take no time at all. LFP is the cats meow once you understand them.
LFP batteries should not sit at 100% (float) when not in use it for long periods, they are happiest at 40-50% soc, the day before you go charge it. Depending on the charger size it will take no time at all. LFP is the cats meow once you understand them.
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