Hatul
Contributor
This is one of the reasons why I steer clear of any lights that use an odd number of batteries if there is a possibility I will ever want to use rechargables.
Very few chargers will charge single cells. They always want to charge pairs or quads.
I first faced this problem with my original Vega 2 light that used 5 cells. So I had to have 6 cells all individually numbered and then cycle them.
Starting with all 6 charged
use 1 2 3 4 5 (not 6)
then charge (1&2) (3&4)
use 1 2 3 4 6 (not 5)
then charge (1&2) (3&4) (5&6)
use 1 2 3 5 6 (not 4)
then charge (1&2) (5&6)
use 1 2 4 5 6 (not 3)
then charge (1&2) (3&4) (5&6)
use 1 3 4 5 6 (not 2)
then charge (3&4) (5&6)
use 2 3 4 5 6 (not 1)
then charge (1&2) (3&4) (5&6)
back to beginning but on the next charging cycles start to cycle the pairs in the charger to re-balance the group as the odd one out will never be discharged to the same level. So
use 1 2 3 4 5 (not 6)
then charge (1&3) (2&4)
etc.
A real pain and I ended up with an Excel sheet printed out to control the sequence.
The Dorcy is really a 3 cell light. What they did is doubled the number connected in parallel ( two 3 cell banks in parallel). This way they got an even number of cells and doubled the energy.
Adam