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We have almost a year under our belt with a 2022 Bolt EUV Premier. Here's my logical conclusion with EVs: The "non-Tesla" charging infrastructure sucks! Unless you enjoy anxiety, don't try road tripping in anything but a Tesla. If you cannot charge at home, consider a hybrid. We charge in our...

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...

For reference... the menu item "Basic settings" in the SOK-BMS app doesn't have an option to select the amp hour capacity - as far as I can tell. I think translations in the app need some work... Even the "nuclear options" across the bottom in the basic settings menu are locked. A dialog pops up...

Cali "can" be expensive for sure! So far Ohio has no personal property tax, and other taxes/fees aren't insane... yet. I guess my point was that the vehicle taxing/registration fee system is getting to be arbitrary... just pulling numbers out of thin air - at least in Ohio. As of now, highway...

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

Okay... read the article. Went out and connected app to the lowest SOC battery, which still indicates 61%. "C MOS" and "D MOS" switches at top area of app are ON. Under "Protection State" menu, every item says "PROT" under it??? Nothing appears selected, highlighted or otherwise? VERY...

The wife's 2022 Bolt has heated and cooled seats. I was skeptical at first... but the seat cooling is VERY effective. It allows keeping the fan and temp higher, but feels quite cool on your butt and back! I don't have statistics or measurements, but winter heating uses MUCH more energy in this...

Here are screenshots of battery stats. What is this telling me? Any suggestions what to do at this point for balancing? How to get the state of charge percentage to accurately reflect battery status??

What about extended storage in sub-freezing temperatures?

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...

The Sungoldpower 3k inverter/charger $825 off Amazon has a built-in transfer switch... essentially a pass-through. As soon as you plug in shore power, the inverter switches off and seamlessly passes the shore power through... and begins charging your batteries if needed. Less than half of a...

I do have a shunt/battery monitor. I calibrated it at 200Ah at full charge. At first (both batteries fully charged) the SOC % mirrored the sum of both batteries. So... should I just rely on what the shunt monitor is telling me? Also, the individual cell voltages (displayed at the bottom in the...

Okay... I read the support article. The problem may originate from me not knowing the password to access the "basic settings" menu. I'm reading elsewhere that it's 200010. Is that correct? Otherwise I did in fact drain/recharge both batteries. I then calibrated my shunt (QWORK battery monitor)...

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...

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...

Okay I'll check the app tomorrow to confirm the voltages.

Two 100Ah SOK LiFePO4 batteries in motorhome, 600 watts of rooftop solar. Solar keeps batteries at 100% SOC. Consider this is in Ohio from mid November until early April. Temperature can range anywhere from 40°F to possibly below 0°F. Question... should I disconnect solar (PV switch) and drain...

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...

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...

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:

Yep that's how they're wired. I was very careful in making certain: 1) The positive and negative cables between batteries is exactly the same length. 2) The positive cable from the battery bank (to disconnect switch) is exactly same length as the negative cable (connected to Lynx Power IN -...

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...

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...

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.

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...

So I have completely drained and recharged both batteries. One battery shows 100% (as shown in following screen shots). However, the other battery STILL will not fully charge. I charged them both the exact same way... combination of solar and Sungoldpower inverter/charger throttled to keep input...

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...

I understood the recommended charge amps to be around 50amps? Actually the amperage fell considerably to something under 20amps before cut off. Yes... the battery DID seem to run quite a while longer than expected. However, the inverter stopping early concerned me? No idea why the inverter...

After the initial drain/charge cycle I performed on the individual batteries (before paralleling them) both BMS displays read correctly... 100% with about 107Ah capacity. But after running in parallel, I think - as you say - the app went wacko, possibly detecting parameters from the other...

I haven't disabled anything... if charging is disabled, it's been disabled automatically by the BMS. So... what are recommendations at this point? Are there any settings I should check/correct? As far as the solar charge controller and inverter/charger, I used the recommended SOK battery...