bestsystem
Newly Enlightened
- Joined
- Sep 28, 2011
- Messages
- 61
Please comment about repacking a 2 cell camera battery with 2 unprotected 18650 cells, what is the worst case scenario here
I replaced 2 prismatic cells inside a counterfeit canon 7.4V LPE8 battery with 2 raw panasonic 3100mah 18650 , get truckload of shots everycharge.
I omitted the whole protection PCB, which has 4 electrodes: +,balance,10Kohm & -output.
The SLR battery cabin has 3 electrodes: +, [space], 10Kohm, -
In order to prevent disasters fromshort circuits, I have installed a 2 amp fuse near the 18650 and it should cutoff. Those oversized cells are stored outside the camera, on the carry-belt.
It appears that Canon's SLR has a built-in voltage guage and when the voltage drops to 6.4V=2 x 3.2V, the camera will report 'flat battery' and turns off, thus overdischarge is not an issue here.
I charge them with a xtar WP2II so both cells be reasonably balanced.
I replaced 2 prismatic cells inside a counterfeit canon 7.4V LPE8 battery with 2 raw panasonic 3100mah 18650 , get truckload of shots everycharge.
I omitted the whole protection PCB, which has 4 electrodes: +,balance,10Kohm & -output.
The SLR battery cabin has 3 electrodes: +, [space], 10Kohm, -
In order to prevent disasters fromshort circuits, I have installed a 2 amp fuse near the 18650 and it should cutoff. Those oversized cells are stored outside the camera, on the carry-belt.
It appears that Canon's SLR has a built-in voltage guage and when the voltage drops to 6.4V=2 x 3.2V, the camera will report 'flat battery' and turns off, thus overdischarge is not an issue here.
I charge them with a xtar WP2II so both cells be reasonably balanced.