| [GMCnet] RV Batteries and Boondocking [message #174524] |
Mon, 25 June 2012 11:12  |
Peter Garry
Messages: 138
Registered: July 2011
Karma:
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Senior Member |
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Hi all,
Has anybody considered lithium ion batteries? From my googles I find the following.
1. Lead acid batteries should only be discharged to 50% So for 100amp for (@ 20hrs) one would require 200 amp hr capacity.
2. AGM or sealed batteries that do not out-gas are more expensive than "regular" flooded lead acid batteries. 2, 6v for 225 amp hrs would run about $600, the weight being about 130 lbs
3. lithium ion batteries can be discharged to 20% So for 100 amp hrs a 120 amp hr rated battery would do. A 12v lithium ion battery 100 amp hr is $1,300 and weighs in at 33 lbs.
The lithium ion batteries have a much longer charge/recharge life and can be charged much quicker. Less batteries, less weight, longer life but double the cost. Worth it?
Comments from the GMCnet would be bappreciated.
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