Battery Life?
Newbie here. I've never boon-docked before, and was wondering how long I can have the lights on in my TT before the battery gets to a critical level (from what I've read below half way charged is bad...
Forum Discussion
Westend,
Marine 20% recharge to 100%
Deep cycle 50% recharge to 100%
AGM 12 volt 50% recharge to 100%
LI 80% recharge to 90% There are some indications that 40% may be a better "low". Recharging in low temperatures is not possible. Cells expand in size as they discharge. If 40% to 90% is the goal, then we are back to 50% usable capacity. So the advantages are speed of recharge, no need for 100% recharge, and weight. Disadvantages are price, cold weather operation not possible and NO forgiveness.
For high draw inverter use 12 volt jars have a slight advantage regarding voltage drop under load. It has to do with cell count, which is double that of the same capacity 6 volt battery.
My ultimate battery pack would be 48 volts @ 250 amp-hours created from 2 volt cells using the technology from "Firefly" jars. Disadvantage cost, and weight. Recharging to 100% once every (say) ten cycles would be a good plan.
Marine 20% recharge to 100%
Deep cycle 50% recharge to 100%
AGM 12 volt 50% recharge to 100%
LI 80% recharge to 90% There are some indications that 40% may be a better "low". Recharging in low temperatures is not possible. Cells expand in size as they discharge. If 40% to 90% is the goal, then we are back to 50% usable capacity. So the advantages are speed of recharge, no need for 100% recharge, and weight. Disadvantages are price, cold weather operation not possible and NO forgiveness.
For high draw inverter use 12 volt jars have a slight advantage regarding voltage drop under load. It has to do with cell count, which is double that of the same capacity 6 volt battery.
My ultimate battery pack would be 48 volts @ 250 amp-hours created from 2 volt cells using the technology from "Firefly" jars. Disadvantage cost, and weight. Recharging to 100% once every (say) ten cycles would be a good plan.
