Battery cutting out

[Schrockie71]

I have a VPower 48v 22A 1000W battery pack. Just recently the pack has started to cut-off on me while riding, and I have to reach behind and turn it off then back on again to get power. It tends to do this while on an incline or applying more than 1/4 to 1/2 of throttle. I used to be able to do 25+ mph now I'm lucky to get 17 without it cutting out. The pack is made up of 117 "18650S22 DHP-1605" batteries. There are 9 bats in parallel with 13 rows. I put my multi-meter to each series and they all register 3.7v+, it's usually around 50-51v area when the cutting out begins. When I plug in the charger, it charges for 5-10min. then goes green stating fully charged which it isn't. I have a new BMS on the way that I'm going to swap out(it was cheaper than buying a new charger), if that doesn't work I'll buy the charger. Any other suggestion I might want to try.

Schrockie71

P.S. Battery is 1yr. old with less than 500 charge cycles on it.
Just took a volt reading 51.2v and cutting out!!!

[commuter ebikes]

A similar thing happened to me on two occasions.

The first time was because the battery had some physical damage (I accidentally dropped it on my garage floor). The physical damage was discovered after opening up the battery to check all of the spot welds. Redoing the spot welds in that area fixed the problem.

The second time was because I had a lot of bad cells in 3 different rows, causing three bad rows. I had drawn too much current. This was solved by replacing the bad cells and a full pack rebuild. It sounds like all of your rows are fine based on the voltage readings in your OP.

I wonder if it’s possible that that battery was only good for 500 charge cycles.

[Bayz1738]

I'm having a very confusing situation with my electric scooter. I woke up one day to take a ride on my electric scooter 1000w 60v 12ah. It was kinda weird because it was full and normally it would drop down to mid or low halfway through the trip. It stayed at full 6 hours later I turned it on to go back home after 20meters it cut out randomly from full to empty and when I would turn it on the led will fade away and the sign of light at all. I got it home plugged it in then my charger started smoking. Threw it in the bin ordered a new 60v charger ( I think my charger was the cause of this I cover my charger with a plastic cover but that blew off and the rain got into it then I plugged my scooter before I went for that trip) I have got the charger but I would plug it in and it would instantly say it's full then I went to see if It would work I found out when I would Full Throttle would cut out assuming the battery is low voltage and the controller cuts it out. when I would half throttle it. It runs but it's kinda slow. Should I leave it on the charger for a day to make sure it gets fully charged or should I try to drain the battery which I did try but as hard as every time it cuts out and I have to plug it back on the charger so it would turn on. I think this could be because of a fuse but not sure as I removed the fuse but it looks fine it think dropped some pics of fuse and battery as well as the controller, it looked like this when I opened it some one help me

[Bayz1738]

I have a VPower 48v 22A 1000W battery pack. Just recently the pack has started to cut-off on me while riding, and I have to reach behind and turn it off then back on again to get power. It tends to do this while on an incline or applying more than 1/4 to 1/2 of throttle. I used to be able to do 25+ mph now I'm lucky to get 17 without it cutting out. The pack is made up of 117 "18650S22 DHP-1605" batteries. There are 9 bats in parallel with 13 rows. I put my multi-meter to each series and they all register 3.7v+, it's usually around 50-51v area when the cutting out begins. When I plug in the charger, it charges for 5-10min. then goes green stating fully charged which it isn't. I have a new BMS on the way that I'm going to swap out(it was cheaper than buying a new charger), if that doesn't work I'll buy the charger. Any other suggestion I might want to try.

Schrockie71

P.S. Battery is 1yr. old with less than 500 charge cycles on it.
Just took a volt reading 51.2v and cutting out!!!

Im having a similar problem very similar. did the new bms or controller fix it ?