Recent content by chateau_nomad

For clarity, here's the text from an email I just sent to sales@sokbattery.com... I purchased two SOK 12V 100Ah LiFePO4 Batteries with Bluetooth & Built-in heater in March of 2023, and recently another one - for a total of three 100Ah batteries. Upon receipt of each battery I completely...

The busbars add some additional work and hardware... and I like the aesthetics of organizing. BUT - If it's a waste of time/effort/cash I'd just as soon add the third battery using the same cabling sequence I used in the two battery setup. My real concern is "indicated" battery charge/balance as...

The "easy" way for me to add the third battery would be just extending the parallel "chain"... which is the way I've often seen it done with FLA battery banks. BUT - this is LiFePO4 and I wasn't sure about screwing up the cell balance. I've read before that SOK's BMS does a less than stellar job...

This is a diagram of what I have now vs changes... adding busbar connections before the Lynx. Comments/suggestions welcome!

I currently have two 100Ah SOK batteries in a parallel string, with all exactly equal length cables. The second battery positive post has a class T 300A fuse, then is connected to a Lynx Power In busbar adapted to accept MEGA fuses. I have a QWORK shunt attached to the negative post (between...

A question for those familiar with how a Precision Circuits Li-BIM 225 battery isolation manager works: My intent is to keep a trickle charge going to the motorhome chassis battery during 5+ months winter storage. Consider that the "house" batteries (200Ah LiFePO4) do not connect with the coach...

I upgraded to LiFePO4 for the motorhome house batteries, but the chassis battery is still Ford stock FLA. The 600 watts roof solar goes through a 40 amp MPPT controller (I removed the stock 10 amp PWM) to the house LiFePO4 batteries. In an emergency start situation I can connect house batteries...

I replaced my RV rooftop 100 watt Rich Solar panels with 200 watt versions. I have discovered my battery isolator (Li-BIM 225) doesn't connect the house and chassis batteries without the engine running - which is really a bummer with the RV in "storage" sitting in the backyard for the 6 month...

Yes, it's "calculated capacity" for each individual battery - calculated supposedly by the battery's dedicated BMS. According to the individual battery cell readings (bottom of ABC-BMS display, and "V Differ"), the cells are balanced about as close as possible. Before installation in April of...

That's something I'd like to know too... is it a BMS issue... or a battery cell issue? Who knows! My brother -in-law had $Battle $Born batteries and Victron "complements". No issues like this at all. And finding answers is VERY difficult.

Every diagram I've seen says to chain the batteries as I have them. I'm wondering if the first battery has less resistance and getting more current?

I have a QWORK battery monitor... Amazon - basically a cheaper Victron shunt. It's currently reading 42.5% SOC. Attached are current screenshots of the batteries:

I'll check today and see what the app says... full sun today. The batteries are buried under the bed... accessible but not easy. Later today I'll get in there and take battery post readings and compare to the ABC-BMS app. Any suggestions how to accurately measure ACTUAL amp hours in my setup? I...

I have two 100Ah SOK batteries (heaters/low temp cutoff) in parallel in my motorhome, and plan to add a third. I am charging from 600 watts of rooftop solar. The cells in each individual battery appear decently balanced, and have remained so since my April 2023 install. The issue I'm having is...

While I COULD remove the batteries, doing so would be a major inconvenience... especially when needing power in the motorhome over the winter - which I do. I exercise the generator once a month, and the LiFePO4 house batteries are the starting power source. Also at that time I need lights for...