Short of throwing the kroll away, i looked carefully inside to watch its operation and noticed the round silver plate that touches both springs only contacts a small portion of them. to positivly remedy this problem once and for all, i replaced both springs. both are of a thicker diameter (stiffer) and the internal center spring is slightly longer also. i soldered a brass plate to the bottom of the spring that will contact the internal one and the battery.
after performing this to 3 of my krolls and testing them on 2 aa mags both with badboy 400's and the magstar 2C cell i modded also with a badboy, i never once had any flicker as i had so many times b4. i ran both aa mags down to a low voltage and still no flicker. there is no perceptable extra resistance when pushing the switch after reassembly. i cycled the switches many many times to verify good contact and now need to put my thumb in a splint or head to the gym for thumb conditioning. naaa just grab another beer.
you can see how the springs would
have a small contact area when engaged.
(the larger one not part of the kroll
just for photo demonstration)
much more contact area. (old springs
used for photo)
after performing this to 3 of my krolls and testing them on 2 aa mags both with badboy 400's and the magstar 2C cell i modded also with a badboy, i never once had any flicker as i had so many times b4. i ran both aa mags down to a low voltage and still no flicker. there is no perceptable extra resistance when pushing the switch after reassembly. i cycled the switches many many times to verify good contact and now need to put my thumb in a splint or head to the gym for thumb conditioning. naaa just grab another beer.
you can see how the springs would
have a small contact area when engaged.
(the larger one not part of the kroll
just for photo demonstration)
much more contact area. (old springs
used for photo)