Any advice would be helpfull my question is . I have a victron solar charger chargeing my lithium 105 amp battery we always camp off grid rallying with our DA . I have fitted a second battery a lead acid under the seat to power only the 12v tv for watching tv on a evening i was thinking is it possible to connect the second battery to the load on the regulator and charge the second battery instead of takeing it our to charge in the house there would be an inline fuse too the second battery for safety reasons if its possible to do thankyou in advance
Advice needed
- Thread starter Plug
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the difference is minimal so the lead acid battery may be slightly overcharged if its not loaded but as you are off grid a lot and using power then it wont arise as the solar regulator won't deliver max voltage to the system , I would fit an isolator switch so that when out and about just let it charge up the lithium battery
- Jul 15, 2008
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.........bare in mind a lead acid battery can give off explosive Hydrogen gas when being charged.
- Jul 23, 2021
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If you have sufficient solar to charge the lithium and lead acid battery, just do away with the lead acid. If you don't, then you want them separated so you don't run out of juice for essential services (as opposed to TV).
Given that a lead acid is perhaps 20kg, and a second solar panel more like 5kg, I would up my solar power to improved the energy collection for the lithium and stop carrying the lead acid.
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