My LIFEPO zippy 4200 4s1p swollen after 3 years and not that much use…
After a while one of the cells seemed to charge much faster than others …
I used it it power the 50W /p amp but I took care of using a balanced charger and not over-discharging it. Who knows…
Time for a new one! They are a lot less than what I paid 4 years ago.
73 Angel
M0HDF
