Recent content by Jriccisf

The system we’re having trouble with has one Growatt SPF 5000 and five EG4 LifePower batteries with about 4,000 watts of solar coming in. This system has worked very well for about a year, until a few weeks ago when we arrived on site to find all of the batteries drained. After updating the...

Exactly! @SignatureSolarJess @EG4_Jared - what's your take here?

That’s definitely not what I want to hear :-) Here’s the thing - these systems are remote, off grid installations. It’s impossible for me to babysit a deep cycle process for 14 days. I also can’t bring the whole system down just so I can deep cycle one battery. It really feels like this is a...

Thanks for the detailed response, @marionw. We always fully charge the batteries and make sure the voltage is VERY close between all batteries before we introduce a new battery into the bank. I'm still not sure what happened in this case to get this battery so far out of whack, but I'm hoping...

OK, I performed a physical reset (twice) and that didn't work, but upgrading the Firmware did. I'll followup after I'm back onsite and we reintroduce this battery into the larger bank. Thanks for your help, Jared.

So is it common for a bank of Lifepower4 batteries to get into a state where the BMS can not accurately read SOC? And if so, what would cause this? And why can't the BMS correct for this situation? I thought I was done dealing with equalization issues when I switched to Lithium batteries...

Thanks Jared. On the Firmware front - is it possible to update the firmware for just one battery in the bank, or is it required that all batteries have the same firmware? As for the deep cycle process...this is the first I've ever heard of deep cycling / equalizing a Lithium battery. I was...

We have a couple of systems from Signature Solar, all similarly configured with Lifepower4 batteries and Growatt 5000 inverters. One of our systems (with a 6 battery bank) has been acting strangely, with State of Charge going down faster than we would have expected. Last week, we arrived on site...