mindblown-871
1 µW
- Joined
- Sep 3, 2020
- Messages
- 1
Hi all,
This is a serious enquiry on this problem i have on my battery, let me explain the situation.
I have a sony vtc 72v pack, reality still young age.
20s li ion 3p (9ah).
It has the 20s BMS installed with a bypass for my motor use.
rated cut off at 61V
Max charge 84v.
The Situation
I drained the battery down to 64V
I unplugged same day and plugged to my 72v charger which goes up to 84v.
I left it overnight came back and realised there was no charge, still at 64v.
So I thought the charger died, it was relatively old (2016). Went out my way got a new charge similar specs.
Did the same thing, no charge again. change plugs on both the charge, same thing no charge.
Decide to hotwire it directly to each other to see if the charger works, nothing.
Went out again got a new high-quality charger and again some outcome, no charge.
I even tried directly plugging it to my bypass to see if it may have been the BMS fault.
I baffled, the battery is at its rated voltage range, the charger doesn't want to charge the battery.
Cant be the charger, as to how can I have 3 spoiled chargers in a row.
Can someone advise on what should i do?
This is a serious enquiry on this problem i have on my battery, let me explain the situation.
I have a sony vtc 72v pack, reality still young age.
20s li ion 3p (9ah).
It has the 20s BMS installed with a bypass for my motor use.
rated cut off at 61V
Max charge 84v.
The Situation
I drained the battery down to 64V
I unplugged same day and plugged to my 72v charger which goes up to 84v.
I left it overnight came back and realised there was no charge, still at 64v.
So I thought the charger died, it was relatively old (2016). Went out my way got a new charge similar specs.
Did the same thing, no charge again. change plugs on both the charge, same thing no charge.
Decide to hotwire it directly to each other to see if the charger works, nothing.
Went out again got a new high-quality charger and again some outcome, no charge.
I even tried directly plugging it to my bypass to see if it may have been the BMS fault.
I baffled, the battery is at its rated voltage range, the charger doesn't want to charge the battery.
Cant be the charger, as to how can I have 3 spoiled chargers in a row.
Can someone advise on what should i do?
