EG4 Community Forum

JLankford
@jlankford
Estimable Member
Joined: November 7, 2024 2:39 pm
Last seen: July 4, 2025 11:03 am
Topics: 7 / Replies: 134
Reply
RE: changed a BMS setting, EG4 18KPV dropped to low amp charging. How to revert back

@dougl FWIW, when looking at the BMS data or changing settings on an EG4 battery, you have to take the battery offline communications-wise. The bat...

7 months ago
Forum
Reply
RE: changed a BMS setting, EG4 18KPV dropped to low amp charging. How to revert back

@dougl The BMS Limit Charge value changes dynamically (at least it does with the EG4 BMS). You could look at the data history and see what the valu...

7 months ago
Forum
Reply
RE: changed a BMS setting, EG4 18KPV dropped to low amp charging. How to revert back

@dougl Which BMS setting did you change? And what is the "BMS Limit Charge" value reported by the 18K?

7 months ago
Forum
Reply
RE: BMS not correct in detecting capacity

@dougl Yes, I understand all of that, and BMS SOC-calculation drift might have been the intended meaning of @signaturesolarjess ' statement, but us...

7 months ago
Forum
Reply
RE: BMS not correct in detecting capacity

Can you please explain this statement? Perhaps provide some data or a reference citation. You are describing the primary problem with Ni-Cad chemistry...

7 months ago
Forum
Reply
RE: EG4 | WP Waterproof Lithium Battery 36v

@95g-atl I don't think the battery charger is bad. 43.8 V is exactly what the charging voltage should be. But, you should only be able to measure t...

7 months ago
Forum
Reply
RE: EG4 | WP Waterproof Lithium Battery 36v

@joel-brodeur we're crossing posts again. You beat me this time...

7 months ago
Forum
Reply
RE: EG4 | WP Waterproof Lithium Battery 36v

@95g-atl So, at 10amps it will take around 10 hours to fully charge this battery. Do you have the manual that came with the charger? Here is an exc...

7 months ago
Forum
Reply
RE: EG4 | WP Waterproof Lithium Battery 36v

@95g-atl The charger model and specs will be important. For instance, if it is a 20 amp charger it's going to take about 5 hours to charge this bat...

7 months ago
Forum
Reply
RE: EG4 | WP Waterproof Lithium Battery 36v

@95g-atl What are you using to charge the battery? How quick is "quickly charges to about 38.4 volts"? Note that 38.4V is a nearly dead battery (ab...

7 months ago
Forum
Reply
RE: Grid power as backup

According to the specifications, the inverter can pass through 100A from the grid, or 24kW. According to this illustration from the product manual p...

7 months ago
Forum
Reply
RE: BMS not correct in detecting capacity

@tristan That 48V chart gives voltages for a 16 cell (51.2V nominal) system.

7 months ago
Forum
Reply
RE: BMS not correct in detecting capacity

@tristan I like this chart. It seems the closest I can find to my system's behavior.

7 months ago
Forum
Reply
RE: BMS not correct in detecting capacity

Many people ignore the SOC percentages and use voltages instead, to trust what their battery state is. If charging or discharging current is small, th...

7 months ago
Forum
Reply
RE: Newbie Help, Missing Battery information on Monitor Center

BTW, I don't have the wallmount batteries. I have an 18Kpv and six LL-S rack batteries. I've read here that both the LL-S and the wallmount should be ...

7 months ago
Forum
Page 5 / 10