popularSeriousTable922 posted Today 04:38 PM
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Item 1 of 2
popularSeriousTable922 posted Today 04:38 PM
Aliexpress ECO-WORTHY 3584Wh 12V 280Ah LiFePO4 RV Battery w/Bluetooth & Low Temp Cutoff - Built-in 200A BMS $222.86
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So I have an 2010 roadtrek RV that charges through shore power to a Tripp lite invertor charger but it's for older lead acid batteries that top out around 12.8v. I also have a alternator charger but same deal, no lithium setting.
What's the easiest avenue. Let them charge to 12.8v and
1. Leave em - never fully charge. Any harm other then reduced capacity?
2. Stand alone external charger to top off
3. Replace the alternator charger with a aftermarket and only ever fully charge up when driving?
4. Unknown to me solution
Don't really want to mess with the Tripp lite as it's small and under a seat so not a lot of options and a pain to swap.
Really interested in buying 2 if I can make it work.
So I have an 2010 roadtrek RV that charges through shore power to a Tripp lite invertor charger but it's for older lead acid batteries that top out around 12.8v. I also have a alternator charger but same deal, no lithium setting.
What's the easiest avenue. Let them charge to 12.8v and
1. Leave em - never fully charge. Any harm other then reduced capacity?
2. Stand alone external charger to top off
3. Replace the alternator charger with a aftermarket and only ever fully charge up when driving?
4. Unknown to me solution
Don't really want to mess with the Tripp lite as it's small and under a seat so not a lot of options and a pain to swap.
Really interested in buying 2 if I can make it work.
So I have an 2010 roadtrek RV that charges through shore power to a Tripp lite invertor charger but it's for older lead acid batteries that top out around 12.8v. I also have a alternator charger but same deal, no lithium setting.
What's the easiest avenue. Let them charge to 12.8v and
1. Leave em - never fully charge. Any harm other then reduced capacity?
2. Stand alone external charger to top off
3. Replace the alternator charger with a aftermarket and only ever fully charge up when driving?
4. Unknown to me solution
Don't really want to mess with the Tripp lite as it's small and under a seat so not a lot of options and a pain to swap.
Really interested in buying 2 if I can make it work.
First of all, you need to disconnect anything that combines your house battery and starter battery like "aux start" or similar. The dissimilarity of voltages between the lithium and lead batteries will kill both.
As for charging:
1. We do a bit of charging with our inverter/charger by putting it on Gel battery mode, it charges at 14.1v with no equalization. If yours has this option, it'll get you to 50-80% charge quickly, but then it'll either stop charging or trickle after that. It's worked pretty well for us.
2. We use a standalone 30a charger we got on amazon for about $100 (Search "30a lithium charger") to get the batteries up to 100% when on shore power.
3. We use a Renogy 60a DC-DC charger to charge the lithium batteries when the engine/alternator are running. It has a wire that connects to the alternator "starter" relay that lets it know when the alternator is running so that it doesn't drain the starter battery when the engine is off.
4. We have a 400w solar power array on the roof with a Eco-Worthy 60 MPPT charge controller.
The truth is, the solar panels do most of the heavy lifting. But it's good to know that we have other options when travelling a lot (Renogy DC-DC) or parked on shore power (Inverter/charger plus standalone charger).
We considered the move to a Victron inverter/charger, but we'll probably let the current inverter/charger die before we make that move.
Hope this helps!
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