If the little light on the toothbrush lights when in the charger, then the charger is working.
NOTE: The 3N-600AE is three 600AE's, aka KR-600AE. I purchased three of the KR-600AE's from a provider on the Web; I paid $2.10ea + $3 ship (http://www.batterystore.com/Sanyo/KR600AE.htm has them for $2.00ea; http://www.bestlaptopbattery.com/viewbattery.cfm/NiCd-NiMH-Cells/All-vendor/KR-600AE.htm for $2.09ea).
You do NOT need the ones with solder tabs on the ends. Simply use electrical tape and tape them together. I stretched small lengths of tape along their axes to 'pull' them together, then wrapped the newly created three-pack with electrical tape. You will have to remove some of the plastic shrink-wrap from the bottom battery, as the toothbrush needs the negative contact to be on the bottom 'side' of the battery pack, not the actual bottom.
You can see the result in a pic I put at
http://www.gentwood.com/KR-600AEfix.JPG
Works like a charm!
NOTE: The 3N-600AE is three 600AE's, aka KR-600AE. I purchased three of the KR-600AE's from a provider on the Web; I paid $2.10ea + $3 ship (http://www.batterystore.com/Sanyo/KR600AE.htm has them for $2.00ea; http://www.bestlaptopbattery.com/viewbattery.cfm/NiCd-NiMH-Cells/All-vendor/KR-600AE.htm for $2.09ea).
You do NOT need the ones with solder tabs on the ends. Simply use electrical tape and tape them together. I stretched small lengths of tape along their axes to 'pull' them together, then wrapped the newly created three-pack with electrical tape. You will have to remove some of the plastic shrink-wrap from the bottom battery, as the toothbrush needs the negative contact to be on the bottom 'side' of the battery pack, not the actual bottom.
You can see the result in a pic I put at
http://www.gentwood.com/KR-600AEfix.JPG
Works like a charm!
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