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Old 07-03-2018, 10:11 AM   #1
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Installing Lithium Batteries under sofa

I am thinking about installing 2 lithium batteries under the sofa in our 2015 FR3 28DS instead of installing them underneath in the battery compartment so they donít get stolen. Any drawbacks to doing this?

Jon
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Old 07-03-2018, 10:36 AM   #2
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No drawbacks. Just extra work of running new wires.
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Old 07-03-2018, 01:34 PM   #3
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IIRC, Lithium batts can be prone to fires if improperly charged. Make sure you have a compatible charging system designed for lithium batts.

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Old 07-03-2018, 01:44 PM   #4
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IIRC, Lithium batts can be prone to fires if improperly charged. Make sure you have a compatible charging system designed for lithium batts.

Tim
No true. LiFePO4 with a BMS are safer than a lead acid.
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Old 07-03-2018, 03:53 PM   #5
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No true. LiFePO4 with a BMS are safer than a lead acid.
Yeah. What I said.

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Old 07-03-2018, 04:17 PM   #6
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I am thinking about installing 2 lithium batteries under the sofa in our 2015 FR3 28DS instead of installing them underneath in the battery compartment so they donít get stolen. Any drawbacks to doing this?

Jon
2015 FR3 28DS
If you install them under sofa, you will need to put them in a battery box or rack with a cover as they have bare terminals. Also as posted above you will need to route your battery cable to your load. Also you will need lithium battery chargers. I programed my Solar Charge controller & Inverter/Charger for LiFePO4 lithium. I had to remove the stock Converter/Charger.

I have mine in the battery bay. I am going to enclose my battery bay because my Battle Born LiFePO4 batteries do not charge below 32F. I also wanted to keep dust out. I think my batteries should be safe as I changed out all 13 basement locks. Also my FR3 28DS is stored in my driveway all winter.

All the 12v cables for the FR3 are in the battery bay. If you keep the lead-acid batteries, then were will have two different battery systems to maintain.

I went with one system to keep it simpler and maximize storage in the FR3. My Inverter/Charger can recharge my batteries at 100 amps.

See my post: Expanding compartment space for 2200 Watt Inverter/Charger
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Old 07-04-2018, 12:35 PM   #7
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None that I know of. There's no water involved and no fumes so no ventilation necessary I placed my lithium in the battery compartment with a key lock and my motorhome is at home which is safe. I did close off the ventilation to the compartment to keep the area free of unnecessary road dirt. You'll love the lithium upgrade.
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Old 07-04-2018, 12:38 PM   #8
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None that I know of. There's no water involved and no fumes so no ventilation necessary I placed my lithium in the battery compartment with a key lock and my motorhome is at home which is safe. I did close off the ventilation to the compartment to keep the area free of unnecessary road dirt. You'll love the lithium upgrade.
Just waiting for them to sell at a price I can love as well.
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Old 07-04-2018, 01:18 PM   #9
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Cowracer,
Lithium probe to fires were the lithium mercury batteries. Lithium is now LIFO and they come with a built in BMS. No more fires .
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Old 07-04-2018, 04:13 PM   #10
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There's prolly less danger from LifePo4's than regular batts...but the real danger is to your wallet...since you need charging systems that are quite different than existing converters...and there are a number of cheap "lithium compatible" chargers that aren't gonna take care of them properly. At around a grand a piece...you can put a serious dent in the wallet if you treat them the same as wet cells. A built in BMS in the battery alone is not the solution...despite what some salespeople will say.
On an amp hours delivered over a lifetime basis...lithiums are the cheapest batteries per amp hour that exist...but you need to treat them exactly right or they can quickly become the most expensive per amp hour.
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