time2roll
Southern California
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Rickyrocket wrote:Wow thanks for the info I am struggling with the 84 Amp hr.lead acid battery and I plan to upgrade to a lithium in the spring, my travel trailer came with the 12v only fridge that drained the battery in about 4 hrs. We have a huge state park with no hookups here and w/o good battery life it is rough. I don't like having to run a generator for hours. Need a propane fridge or 600+ watts solar on the roof and park in good sun.
Probably help to know the fridge make and model# to explore operations or upgrades.
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StirCrazy
Kamloops, BC, Canada
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Joined: 07/16/2003
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time2roll wrote:Lithium is not that different. Most "lithium" converters are actually not the best for lithium batteries.
The existing WFCO might work fine even if not perfect. Will not harm the lithium. Charging might be a little slower but will still far exceed lead-acid. Might short charge the lithium to maybe 90% - 95% which will not harm the lithium one bit. Might even last longer.
unless you have a battle born, they are telling people now that a normal charger will harm the battery on different forums. I can see their point also, if you never charge above 95 that means you never top balance so over time your cells can drift.
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Huntindog
Phoenix AZ
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Using a standard LA charger on Lithium batteries in a mutiple day boondock situation results in 62% charge. Several on multiple forums have replicated this finding..... Now if you are on hookups, it will get to 100% given enough time... But on hookup negates the need for a better battery.
For solid performance, I recommend Progressive Dynamics.
* This post was
edited 09/29/23 08:21am by an administrator/moderator *
Huntindog
100% boondocking
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time2roll
Southern California
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If the LA charger goes 14.2 to 14.6 volts the lithium will be at 100%.
Most do charge at this level.
* This post was
edited 09/29/23 08:22am by an administrator/moderator *
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Huntindog
Phoenix AZ
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That is a BIG IF
All the LA converters I have seen will only do bulk mode for a set amount of time. If it is a WFCO, they are usually stuck at 13.6 regardless of what their manual states. There are ways around it.(except for WFCOs) but none of them are user friendly in that one MUST do something each time to make it work. I have better things to do than hovering over batteries. Converters are cheap. just get the correct one and it will take care of itself.
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edited 09/29/23 08:22am by an administrator/moderator *
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Rickyrocket
Coventry,RI
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I appreciate all the input however Im still stuck on exactly what needs to be replaced. Do I completely get rid of the wf8930/50 fuse panel and charger,just the charger portion? If so with what model,surely someone has been down this road. This travel trailer has 1 slide,a 12 volt only fridge, awning is 12 volt so I need a charger to keep up with usage and prefer to do it one time only.
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Grit dog
Black Diamond, WA
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You can keep the panel and just upgrade the converter.
I was looking at the same thing with our old toyhauler but then I fixed the converter with a for sale sign….so never got to actually do it.
It’s a relative drop in replacement
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