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Sooooooo.... I'm the guy in my camper club that loves batteries and solar, etc. This weekend I helped a friend put panels on the roof, upgraded the batteries to Lithium, added a Victron Solar Charge Controller, Orion Charger, and Phoenix 1200 Watt inverter. Pretty straight forward stuff. We...

Hi, My Ford F150 just left this earth (blown turbo which warped the engine block @ 125,000 miles); so I replaced it with a Dodge 2500 with the 6.7 Cummins diesel. In the Ford, I ran 2/0 wires from the battery positive and the chassis ground through the frame to the back bumper where I have a...

The question here is should I leave the converter charger in the Lithium constant 14.6 volt mode (and re top balance the cells), or use the normal mode (14.4V/13.6V/13/2V) where this problem doesn't happen; or something else. I built and added the 280 AH EVE battery to my trailer. I moved the...

Hello all, Two of my friends have these plug and play batteries. They are currently using MBRF fuses on the terminals, which has a 10,000 amp AIC rating. When I look at the specs for these batteries, I've found Renology claims to have a less than 30 milliohm IR and the Lion battery to have 5...

Two questions: I have a 280 AH LIPO4 12V system with no inverter; solar comes in on 2-100 watt panels; I also have a 40 Amp DC DC charger to charge from the car and 55 amp Converter to charge from shore power. Question 1. Is a manual Battery cut off switch a necessity or convenience. I...

My trailer sits for weeks or months at a time. I assume the SCC has a tiny bit of a current draw when connected during this off time ... to kill this draw, I thought about attaching the negative battery wire to the battery cutoff. Thus, when I disconnect, the battery from the trailer, I also...

If I use this power supply to charge a lifpo4 60 AH diy fortune cell battery and set at 14.1 v; will the battery reduce the current it will accept when it reaches 14.1V? I know this happens with my cc/cv power supply because I can see the amps drop as it reaches full charge. Thanks

I’m going lithium this weekend; and have two SLAs available in the Sacramento area. Cost about $400 for the pair; make me an offer. Will consider driving a couple hours in any direction for decent price. I have original receipt; batteries have served RV trailer with pretty light use and on...

Can you charge an individual cell while the pack is hooked up in a 4s configuration or do you need to isolate it (ie disconnect the BMS and neighboring cells)?

So, i just built this thing; and am charging it up to replace 2 92 AH SLA batteries. How many cycles are people putting on these packs before installing into their RV? Do I just jump and keep the SLAs in case something bad happens? 1 cycle? 5 cycles? 10 cycles? So far we're at 3.600 on first...

Ordered 4 on 3/25/21 on AliExpress; 550$ delivered to California. They arrived yesterday... tracking never budged. Packaging was solid; came with screws and decent bus bars (I’ll use studs). Cells looked good; no swelling; threads all good. 3 cells at 3.228 and one at 3.227. Started on...

I camp in an RV with 2 92 AH SLA batteries; and use about 175 watts a day. Also, I work on a computer/monitor running off a solar suitcase with a 60 ah LiPO4 battery and a 600 watt inverter. Off that system, I also run a 6 watt cell booster, charge a couple iPhones once a day and charge an...

Any thoughts on reputable drop ins? Or should I build the fortune cell battery. Needed for CPAP for 5-7 days of camping at a time; can access solar or a charger during the trip for quick recharge.

I just upgraded my trailer to the Progressive Dynamics 4655 Converter (then, I decided I wanted to upgrade to LiPO4 . . . ). On shore power, the converter charges at 14.4 volts in boost mode to 90% of the lead acid battery capacity and then floats at 13.6. At the push of a button, you can...

So, I set out to try to make a battery and duplicate Will's Milk Crate build; but then went on to the briefcase idea as I was wandering the aisles of Harbor Freight. So, here it is. A full supply list and cost is included. This was a fun project and will help me when I'm remote working from...