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Old 05-17-2007, 09:37 AM   #1
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Question about batteys...

Can i use a Ni-MH battery with a Standard Tamiya ESC? (it says use Ni-Cad)
or can i use Ni-MH with any ESC that says use a Ni-Cad

Thanks, Danny

Also if there are any good/bad things about Ni-MH batterys please tell me
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Old 05-17-2007, 10:34 AM   #2
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Yes, the slight voltage increase from NiCd to NiMh won't cause a problem. The limits will be the number of cells used (check the specs if you plan to use more than 6 cells), and the current rating. Usually current ratings are based on standard 540 size motors and the number of winds. For instance, if the ESC says 18T minimum, then you can use anywhere from 18T and up motors. The higher the wind number, the less current it draws. Stock motors are typically 27 turn.
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Old 05-17-2007, 12:41 PM   #3
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right now im using the standard tamiya ESC with the standard tamiya 540 so would a 3300MaH NiHM be fine? i use a 1700Mah and a 2100Mah Ni-Cad right now
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Old 05-17-2007, 03:22 PM   #4
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Yep, you can use any six cell (7.2 volt) battery with that motor/esc. Doesn't matter whether it's a 1500mah, or 4200mah. Both nicad and nihm will work.

The mah rating is just the capacity of the battery, as long as it's 7.2 volts you'll be fine.
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Old 05-17-2007, 03:48 PM   #5
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Ok, thanks for the replys

would 2 3300MaH NiMH 6cell packs be a good deal for 36 including postage (aprox $73 USD)

Thanks again, Danny
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Old 05-17-2007, 06:20 PM   #6
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Sounds like an OK deal. Just remember (as the above post states), use 7.2v but try to get the highest capacity (typically 42 or 4300mAh now) so that you get longer run times. On the flip side though, the higher the capacity, the longer it will take to charge if you only have a charger that charges at a set current.
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Old 05-19-2007, 08:46 AM   #7
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ive got a ansmann AC 30 charger, will that do a 30min fast charge on a 3000mah battery pack ?
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Old 05-19-2007, 06:07 PM   #8
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Is this the charger you have http://www.chainreactioncycles.com/M...?ModelID=14852, if so, that will not fully charge a 4200, probably not even a 3300. The problem is a timed charger such as that one will only charge 30min at a 3 amp max. For a 4200 batt it takes at least 45min at 5amps. Timed chargers are not really used anymore, if I were you I wouldn't worry about upgrading your batteries right now, and save up for a decent Peak charger that will be able to get a full charge into the newer batts. Here are a couple of Decent mildly priced Peak chargers I would go with

1.Duratrax Piranha http://www2.towerhobbies.com/cgi-bin...?&I=LXCLD5&P=7, AC/DC charger, will charge at 3Amps with AC, 5Amps with a DC Power supply such as http://www2.towerhobbies.com/cgi-bin...?&I=LXUF47&P=7, This Power supply will work fine with this charger

2.MRC Super Brain 960 http://www2.towerhobbies.com/cgi-bin...?&I=LXRST9&P=7, This charger will charge up to 4.5Amps with either AC or DC

Or you can go to the For Sale thread and find something there. Keep in mind most of the chargers people are selling here are DC and will require a Power Supply. When perchasing a Power supply make sure it meets the needs of the Charger.
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Old 05-20-2007, 03:05 AM   #9
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Thanks big b, when i go to the hobby shop in town ill look at the chargers there, i bought 2 3000mah batterys and it has charged them fine but ill be getting higher rated ones when i get my brushless system so i might aswell look out for a charger first
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Old 05-20-2007, 04:30 AM   #10
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I have noticed on the specs of alot of the new IB4200 35a matched packs it sez to charge at 6 amp. My charger does 5amp max.. is that going to cut the mustard?
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Old 05-20-2007, 05:04 AM   #11
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5 amp will be fine until you get serious about racing, then you will want the extra punch charging at 6 amps will give you.

EDIT: Charging at lower amps will give you more runtime while higher amps will give you more voltage
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