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Looks like Epoch pushed an update for their app today. You can view multiple batteries at the same time. Looks decent too. This is on Android, not sure about Apple. This is also with the basic non-comm batteries.

What shunt do you have? It should allow you to customize all of the parameters to your setup.

I'll suggest again, you need a shunt.

What issues are you having?

Again, if you're relying on the BMS SOC% to be accurate, it's not. You need a shunt if you want a more accurate SOC%.

It's 200010

The internal BMS is not accurate for SOC% as it looks to be voltage based.

What are you using to gauge the state of charge? If anything other than a shunt, it's probably not accurate. If you're using a shunt, your settings may not be correct.

Then it sounds like you'll be just fine.

So you plan on running the inverter at maximum capacity continuously? You're going to get less than 1.5 hours of run time...

152A continuous is a good bit of power... What exactly are you trying to power continuously with that load?

Not trying to insult your intelligence, but have you tried a different device and/or tried restarting your phone?

I didn't measure the length afterwards. But, I do recall the interior width of my battery box was approximately 27.5" wide and I have two of them side by side longways.

Just downloaded and installed on my wife's iPhone 15 Pro. Connected just fine.

Which BMS is it and where did you get it from?

If you're having the same issue with multiple devices, the common denominator is the battery/Bluetooth module...

Are you close enough to the battery? Maybe there's something wrong with the Bluetooth dongle...

What build of Android 13? I have a cheap phone Orb 5G with Android 13 and the Overkill Solar app works just fine...

Reach out to them on Facebook. That's how I've got all of my responses and in a timely manner.

If you're relying on the BMS to give an accurate SOC%, that's not going to happen. Is the voltage the same on both batteries? Are the loads showing very close to equal? If so, the settings for % may be slightly different. Use the Overkill Solar battery app to see more detailed settings.

I've received quicker responses by messaging them on Facebook. For what it's worth, I ordered two basic 300AH batteries on 11/15/2023 and they were delivered on 11/16/2023.

Are you running the latest firmware?

The overall dimensions are very similar to the Epoch 300AH (which also has integrated heating pads). https://www.epochbatteries.com/products/12v-300ah-heated-bluetooth-lifepo4-battery-epoch-essentials

Reasons why I went with Epoch vs the others: - Black Friday 20% off (made each battery $879.20 before shipping) - Smallest "footprint" of a 300AH battery that I could find Plus, they're in Atlanta if something goes wrong during the 11 year warranty.

I have the basic version, no comms.

I have two of them in my van. They work as expected and have been great so far.

The system has a separate "shunt" for the AC current readings, which are the previously mentioned sockets.

Such as?

It's definitely not voltage based. I'm not concerned with the realtime current reading. I just need to trick the system into calculating a more accurate SOC%. I have a Victron Smartshunt for actual values.

No, that is not what I'm trying to do. I am not changing any loads at all. I have simply increased the bank size to 600AH and want my system to read the SOC% correctly.

For some reason, I was thinking Victron prices were higher. My mistake.

Price, positive reviews, and the most compact footprint possible were my reasons for going with the Epoch. I'm in a 144 Sprinter with limited space.

If price is no concern, do what you want. But for us peasants, price is always a concern.

Epoch, hands down. In fact, I have two Epoch 300AH that I bought with the 20% Black Friday discount. Victron and Battleborn batteries are way overpriced.

Have you already upgraded batteries? What chemistry? What size wiring? What's your LBCO setting on your inverter? We need more information...