jm1
Member
- Joined
- Dec 14, 2017
- Messages
- 43
Hello Guys,
I have a couple of Opus chargers, one of them was consistently reading higher voltages than the other. For example, my cell would read 4.19V on my Fluke multimeter and also on one of my Opus chargers. If I popped the cell in the other Opus it would read 4.24V which was not reality. This caused all cells to start the discharge cycle from 4.15-4.16v since the display showed that as 4.20V.
I opened the back of the charger and desoldered the J1 jumper which is described as a "voltage compensation" by the Opus manufacturer. Once I did this it now reads accurately and matches the |Fluke meter as well as the other Opus charger.
Just putting this out there in case anyone else notices this 0.05V higher voltage reading on the Opus display.
James
I have a couple of Opus chargers, one of them was consistently reading higher voltages than the other. For example, my cell would read 4.19V on my Fluke multimeter and also on one of my Opus chargers. If I popped the cell in the other Opus it would read 4.24V which was not reality. This caused all cells to start the discharge cycle from 4.15-4.16v since the display showed that as 4.20V.
I opened the back of the charger and desoldered the J1 jumper which is described as a "voltage compensation" by the Opus manufacturer. Once I did this it now reads accurately and matches the |Fluke meter as well as the other Opus charger.
Just putting this out there in case anyone else notices this 0.05V higher voltage reading on the Opus display.
James