Bugar In. USA
Active member
Can NIMH 9 v batteries be charged on a nicad charger, i have a 4 unit charger that is rated =9v / 300 ma, will it work? or do i need a nimh charger?? Thanks, Bugar
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Re chargable battery question
- Thread starter Bugar In. USA
- Start date
Bugar In. USA
Active member
The nicad charger dosen't seem to be as powerful, or whatever you call it, as my nimh charger, i could,nt see why it wouldn't work, just would be slower,
Take your total battery capacity and divide by your charge rate will give you hours to charge the pack. Due to heat loss and resistance you probably need to add about 10% more time.
3000mAH battery charging at 250mAH plus 10% would take 13.2 hours if totally discharged.
3000 x 1.1 / 250 = 13.2
Slow charging both types of batteries is better than pushing them to where the batteries get hot. More energy loss due to heat and less in the battery. Slow charging gives time to let gasses that form and impede charging the battery to leak off. Also if you do quick charge the either battery it is best not to use them until they return to room temperature. Running the battery to their discharged state in your detector before recharging will improve capacity and battery life. Never store a pack over the winter months that has not been fully recharged. I have one set of NiCad packs that are 12 years old but the NiMH batteries that are quick charged all the time only last several years before some start failing.
Good detecting.
Hope this helps.
3000mAH battery charging at 250mAH plus 10% would take 13.2 hours if totally discharged.
3000 x 1.1 / 250 = 13.2
Slow charging both types of batteries is better than pushing them to where the batteries get hot. More energy loss due to heat and less in the battery. Slow charging gives time to let gasses that form and impede charging the battery to leak off. Also if you do quick charge the either battery it is best not to use them until they return to room temperature. Running the battery to their discharged state in your detector before recharging will improve capacity and battery life. Never store a pack over the winter months that has not been fully recharged. I have one set of NiCad packs that are 12 years old but the NiMH batteries that are quick charged all the time only last several years before some start failing.
Good detecting.
Hope this helps.
Bugar In. USA
Active member
And my reply was, if i was going to charge nimh batteries i needed a nimh battery charger= Well i dunno whether to believe this or not, they seem to be honest, but i kinda think they are wanting to sell chargers, I still dunno , I kinda think it would work, it's just that i got a good nicad charger, and hate to invest in a nimh charger if i don't need to,. Thanks
Boog
Boog
My Vanson 8-bay AA/AAA charger has a switch on it to toggle between NiCad and NiMH. The specs in the manual show the same voltage and current for both types (2.8v and 200ma per AA pair, 2.8v and 80ma per AAA pair) but differ in durations. The auto-shutoff for the NiCads is set to 5 hours, but switch to NiMHs and it's 8 hours.
halfdollar
New member
I also use a Vanson 8 bay Charger. Mine Charges either battery, So there must not be a difference. Charge away.