Did you replace your battery with a larger capacity battery? OPO was designed to hold a 3100mAh battery so these chips have been programmed to support only that size. I'd get another battery with 3100mAh advertised. My (probably fake) replacement is working fine.
Yes i did repalce it with an original ZTE battery (4000mAh) but i used the original BMS controller from my OPO battery. If i could only 3100 i would be happy. I will have to go back to Sultans kernel because there i can adjust the batterie Gauge to a fixed value from 1-100% so the OS wont shut down to early. Then i have to use the akku voltige as indikator.
I hope there would be a way with francos kernel to avoid the problem but i think he is to busy.