Recent content by girfold

Actually, in regards to the packaging, I've been sweating that because I always take my cardboard to the dump very shortly after getting stuff.. I'm considering getting 1 more LiFePo4 battery to round out my array from 5 to 6 + 1 (for the wheelie cart that Will has shown built before). Then I...

Yep, to the front of the battery only with the charger, with the breaker in the on position. Won't be connecting them past the exterior. I have tried pressing the reset with breaker on, with breaker off. Holding reset for 15 seconds with breaker on and with breaker off. And lastly holding reset...

I think it should, but it hasn't hahah. I've had it off for nearly a day and when I got back to it, still heard the low volume, high pitched buzz/whirr/hum.

After charging attempts, and removing the gator clips, voltage reading showing a steady 27.35V. Buzz persists, no light change.

Yeah. The thing SS has been curious about is the lack of alarm light. Apparantly the light will be present for all sorts of conditions, but since the 15th, no leds have lit up from any procedure. No luck just yet on the charging activity front. Will double check terminal voltage afterwards to...

The charger is acting odd, it turns on for a few seconds, then turns off. Clicks on, waits a few seconds and then off. The behaviour may either be Trickle Charging or Low/Bad battery by the description. I think because there is also a green light alternating with the red light it falls under tbe...

I just tested each individual cell voltage as well. All cells are around the 3.32V range. The high pitch humming sound is still constant, though still low volume.

Hmm, some bad news, I think, it looks like I can't see the MOSFETs as they are on the other side of of the picture. I can see the silver behind them and the silver looks ok, but would need to remove components to be able to view them from I can tell.

Will do and will update this thread this evening with pictures.

Thanks, will wait a bit for support, since I won't be around to do anything just yet anyway. Per the steps provided so far by technical support, I was instructed to remove the case and investigate for any signs of burn damage or cell damage. No sign of damage, only a persistent high pitched sound.

Thanks, will also try charging it while attended for about 10 minutes when I get home. And will have my voltmeter monitor the voltages on the terminal side. Also useful to check the internal voltage to see if it is getting through?

When I get home later, I can remove one of the batteries from the array and check a known good battery. I did have to update the firmware on them when I got my 6000XP, so have gone through the update and tools utility, but most of the communication is to the inverter via daisy chain.

We've been having some daily email exchanges so far. If this was the only battery I owned, I would probably be calling them for live troubleshooting sessions, but this isn't too urgent at the moment. Posting here to get some thoughts and to help any others who run into this same issue in the...

I'm certainly no Electrical Engineer, and don't know the details of the BMS. It's possible, and ideal, that upon fault an inoperable BMS will physically block charging to avoid bricking a battery, at least until the BMS can be replaced or fixed. I'm definitely newer to the scene so if that's...

I do have the 48V 18A EG4 charger, the old low amperage one and I'm not opposed to using it, just thinking things out. So it faulted on 3-15 for about 5 hours, before I was around to see and remained in breaker on state while the rest of the array was charging, so my thought is that it would...