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battery charging/discharging rates

battery charging/discharging rates

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Old 12-12-2009, 05:32 PM
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i am have these batteries
1.orion 4500mah sportpak w/deans connector 1/10 pack for rc10b4
2.dynamite 1500mah w/deans connector 1/18th pack for rc18b


i was wondering what i should charge them at, and when i am done using them should i discharge them to a certain voltage for storage or recharge them or just leave them any help would be great thanks again
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Old 12-12-2009, 06:18 PM
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Originally Posted by 05kas05 View Post
i am have these batteries
1.orion 4500mah sportpak w/deans connector 1/10 pack for rc10b4
2.dynamite 1500mah w/deans connector 1/18th pack for rc18b


i was wondering what i should charge them at, and when i am done using them should i discharge them to a certain voltage for storage or recharge them or just leave them any help would be great thanks again
what charger u useing
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Old 12-12-2009, 06:39 PM
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i just got a new charger it is the hyperion 720inet3. i upgraded to this, the one i had before was a prophet plus it had 1,2,and 4amp settings
i was charging the 4500mah at 4.0amps but i thought they were getting to hot and the 1500mah i was charging at 1 amp they always seemed to stay cool i have never really cared for my batteries.i recently got these new batteries and charger and would like to do it right this time.then when i feel comfortable i will be moving up to lipos
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Old 12-12-2009, 06:43 PM
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A safe rule of thumb to follow is to charge them at th3 capacity/1000, so for the 4500mah pac, it would be 4.5amps.

These are NiMh right? I'd charge at at 5amps, I charge my 4200 and 4400mah packs at 5amps.

The Dynamite pac looks like its NiCd? Would charge that at not more than 2amps.

I tend to just leave mine after running them.
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Old 12-12-2009, 06:49 PM
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Originally Posted by 05kas05 View Post
i just got a new charger it is the hyperion 720inet3. i upgraded to this, the one i had before was a prophet plus it had 1,2,and 4amp settings
i was charging the 4500mah at 4.0amps but i thought they were getting to hot and the 1500mah i was charging at 1 amp they always seemed to stay cool i have never really cared for my batteries.i recently got these new batteries and charger and would like to do it right this time.then when i feel comfortable i will be moving up to lipos
NiMh do get pretty hot when they peak - 120-130F, this is normal and just part of charging. They shouldn't get so hot though that you can't hold them. Newer packs tend to get hotter, but after some cycles they drop in temperature. If thay are getting 'too' hot, keep using 4amps.

A good reference on cell care look at the tech support topics here -

http://www.promatchracing.com/techsupport.php


Nice charger, I have 2 of the 0610i that the 0720i replaced. Been great.
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Old 12-12-2009, 07:17 PM
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thanks for the reply duster-the 1500 dynamite is nimh as are all of them.i will charge at 4.5-5 on the 4500 and 2.0 on the 1500 got it thanks for the info
just want to get it right the first time thanks again
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