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batttry question

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Old 09-04-2012, 01:46 PM
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joehervey1984
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Default batttry question

hey guys the battery im going to get says max 4 amp the chager im now lookin at says 1.5 .3.0 and 5.0. if i go with this charger will 5.0 do damage to the battery?
Old 09-04-2012, 01:56 PM
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Default RE: batttry question

Probably not, but could you point us to the specific battery to make sure? Thanks.
Old 09-04-2012, 02:05 PM
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Default RE: batttry question

sure its a duratrax 7c 4200mah battery. what does the amp option mean on the charger? there is another charger that has 4amp as option.
Old 09-04-2012, 02:07 PM
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Default RE: batttry question

You'll be just fine with 5 amps. Those packs can take a lot more than 5 amps. Saw your PM , maybe the Onyx 230 or 235 would be even faster? I think they are 7 and 8 amps (on DC power)
Old 09-04-2012, 02:08 PM
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joehervey1984
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Default RE: batttry question

what does the amp on the charger mean? the one im lookin at has 3 pick from. im lookin to fully charge my battery
Old 09-04-2012, 02:09 PM
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Default RE: batttry question

http://www.hobbypartz.com/thac6smbachw.html charger should allow you to set the charge to anything up to 5 amps
Old 09-04-2012, 02:10 PM
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Default RE: batttry question


ORIGINAL: joehervey1984

what does the amp on the charger mean? the one im lookin at has 3 pick from. im lookin to fully charge my battery
Amps is basically the charge speed (current) Faster is hotter and more damaging to a point. We all used to use 8-10 amps with those NIMH packs.
Old 09-04-2012, 02:14 PM
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joehervey1984
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Default RE: batttry question

oh why would the battery say 4amp max but 5amp will not do damage??
Old 09-04-2012, 02:18 PM
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Default RE: batttry question

Cos they don't want people to fast charge them and warranty them if a cell isn't very good and suffers, despite the fact that these kind of cells should take a 10A charge comfortably. It's like almost all 'manufacturer recommendations', overkill. Don't get me wrong, unless you have experience and are sure of what you are doing, you should always follow the recommendations, however, as you spend more and more time around this stuff, you learn what is actually true and what is just wasting your time. As the others have said, you will be absolutely fine charging it at 5A.

Good batteries have no such guidelines on them, people know what to charge them at.
Old 09-04-2012, 02:22 PM
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joehervey1984
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Default RE: batttry question

^^^ great i know have my order finished i just have to wait a few more days to place my order. im geting one of those cheap evaders
Old 09-04-2012, 02:22 PM
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Default RE: batttry question

I really don;t know.
Old 09-04-2012, 02:47 PM
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joehervey1984
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Default RE: batttry question

thank you
Old 09-05-2012, 09:01 AM
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Default RE: batttry question

Charging a battery above the recommended charge current will reduce its cycle life. For example, if a battery is rated for 4 amps charging current for 500 charging cycles, You may only get 450 or 400 charge cycles if you charge it at 5 amps.
Old 09-05-2012, 09:19 AM
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Default RE: batttry question

If people cared about that, they would charge at 1miliamp. There is a happy medium, and its way above 5A for most nimh packs. I don't think I've ever charged a single battery 100 times in all my years in the hobby, so its kind of moot.
Old 09-05-2012, 10:38 AM
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joehervey1984
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Default RE: batttry question

thanks guys, i feel a tad short on the battery and charger all i had money was for the rtr evader.
Old 09-05-2012, 12:25 PM
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Default RE: batttry question


ORIGINAL: guver

You'll be just fine with 5 amps. Those packs can take a lot more than 5 amps. Saw your PM , maybe the Onyx 230 or 235 would be even faster? I think they are 7 and 8 amps (on DC power)
Why would anyone spend that kind of money on a charger that will do no more than 3 LiPos?
Old 09-05-2012, 12:36 PM
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joehervey1984
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Default RE: batttry question

i have time to think my rc funds fell a tad short to get a battery and charger with my order.

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