Your battery is well out of balance. Normally, cells should be within 0.100 volt of each other. The good news is that your worst looking cells are only at 3.20 volts.THese may be the cells that power the BMS and ran down while the battery was in storage.
Here's what happens when charging. The BMS watches the voltage on all ten cell groups As soon as the groups that are at 4.10 volt hit 4.2 volts (max full charge) , it stops charging leaving those low cells at 3.2V yelling for more power, but sorry, the bar is closed. Meanwhile, if you try to use the battery, it shuts off as soon as any cells reach 3.0 volts, The lowest cells get there fast, so even though the battery is at 39 volts, it is useless.
If you leave the charger connected, some BMS will try to balance the cells. It will discharge the highest cells a little and start the recharge again. Slowly the cells at 3.2V will catch up. This could take several days. The charger will stay green, but if you had an ammeter on it, you would see it pull about .05 amp. However, not all BMS have this balance function. Give it a try anyway. Watch those cells with a voltmeter. See if they are coming up.
If the above doesn't work, you can try charging the 4 cells individually. Disclaimer. Do this at your own risk, You need a 4 volt charger, and you should not exceed 4.1 volts. Suggest you go to the endless sphere forum and ask for directions. There's risk of cell damage and fire if you make a mistake.Let's hope your battery can rebalance itself.
Even if you could stitch in four new cells, they start at 3.6V when new, so the pack is still unbalalanced,
Last edited by Doc_Wui; 01-12-20 at 08:11 AM.