Author Topic: $50 Robot Cheap 6V NiMH Battery  (Read 3814 times)

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Offline ParthTopic starter

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$50 Robot Cheap 6V NiMH Battery
« on: June 09, 2008, 07:41:45 PM »
So, I was looking around the web today to try to find good deals for the $50 robot and I came across this good deal. It is a 6V 2300 mAH rechargeable NiMH battery pack for only $11.99. I was wondering if I could use this battery for the $50 robot. http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=495

I couldn't decide between this forum or the misc. forum, so I just decided to put this here. Hope I'm right!
« Last Edit: June 09, 2008, 07:44:32 PM by Parth »

Offline Centaur

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #1 on: June 09, 2008, 09:24:02 PM »
While I'm really new at this, I'm 99 percent sure you can use that battery.  You just have to make sure that it can provide adequate current, which for the 50 dollar robot it definitely will.
Any intelligent fool can make things bigger, more complex, and more violent.  It takes a touch of genius - and a lot of courage - to move in the opposite direction.  ~E.F. Schumacker

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #2 on: June 10, 2008, 02:48:02 PM »
I have that battery and i love it . I got two of them from them and it works perfectly

It will work with the 50 dollar robot .

Be sure to post  pics of ur bot when you finish it
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Offline Trumpkin

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #3 on: June 10, 2008, 03:58:28 PM »
I have that battery too, I like it lots.
Robots are awesome!

Offline pomprocker

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #4 on: June 12, 2008, 11:16:13 AM »
yeah this sale was posted a long time ago in this forum, i guess its a never ending sale.  ;D

i got the battery too its great.

Offline ParthTopic starter

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #5 on: June 14, 2008, 04:36:58 PM »
Thanks for the replies, everyone! If I do get this battery pack (which I probably will), would I use this charger with it?

http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1979

It says the charger has a Mini Female Tamiya Connector, but I have no idea what that means. It does, however, look like it'll fit into the battery's connector.

Thanks in advance!

Offline Trumpkin

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #6 on: June 14, 2008, 05:11:44 PM »
I don't theink the connector would fit
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Offline ParthTopic starter

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #7 on: June 14, 2008, 07:01:39 PM »
If not that one, what about this one?

http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1931

It doesn't say on the battery pack information what sort of head it has, so I'm just guessing, lol.

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #8 on: June 14, 2008, 07:32:27 PM »
the battery has a MOLEX connector which is not a tamiya connector

http://www.all-battery.com/index.asp?PageAction=VIEWCATS&Category=362

make sure you match up connectors - same size and male to female

also what I did was cut the molex connector and solder on a male mini tamiya connector to it

buy some other mini connectors to attach the batteries to your circuits, etc.
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Offline ParthTopic starter

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #9 on: June 14, 2008, 09:27:50 PM »
If I buy the battery pack, this charger, and this connector, could it work? I would cut off the end of the battery pack wires and solder on the connector. That way, I could easily plug it in and out of the charger. Would this work or not? Thanks!

Charger: http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1931

Connector: http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1875

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #10 on: June 14, 2008, 11:17:43 PM »
yes that connector would work

I see that adapter is rated at 400ma, that means that your 2300 mah will take quite a while to fully charge! I would suggest one of all-battery.com's smart chargers, they are worth the investment.
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Offline ParthTopic starter

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #11 on: June 14, 2008, 11:45:23 PM »
OK, thanks! Yeah, it will take a while, but at least it still works!

Also, I could just charge it while I'm sleeping (doesn't it take like 6 hours to charge?). I'd rather save some money so I could go out and buy some other cool electronic stuff!  :P

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #12 on: June 15, 2008, 12:12:28 AM »
yea it'll take like 6 hours, just make sure not to overcharge the battery b/c NiMH batteries get really hot .

A cool thing  which I am not 100% is true: NiCd batteries get colder as they charge.
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Offline Challenger

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #13 on: June 15, 2008, 02:23:38 PM »
A cool thing  which I am not 100% is true: NiCd batteries get colder as they charge.
Yes that's true.NiMH aswell...
« Last Edit: June 16, 2008, 02:09:27 AM by Challenger »

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #14 on: June 15, 2008, 03:31:23 PM »
are you sure about NiMH???


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Offline Trumpkin

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #15 on: June 15, 2008, 08:05:44 PM »
Umm I'm pretty sure nimh batteries do not get cooler when they charge.
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Offline Challenger

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #16 on: June 16, 2008, 02:09:10 AM »
are you sure about NiMH???



My mistake, i'm wrong  ;D

Offline shlodo

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #17 on: June 16, 2008, 02:33:07 AM »
yeh nimh are good, like the ones in mobile phones... They have no real memory loss and charge quick, good power too(current). Might need more than 6V tho. Thats enough just to run your microcontroller - u want a seperate supply for motors etc. if u want some power.

Nihm batteries certainly dont get cooler as they charge... U are putting electrical energy into em and hence - Heat.

Yeh get a Smart charger as was previously mentioned.. An all in one Universal type one... cost u a bit but very handy to have lying around.. Most of them know when its charged and stop which is what u want with Nimh. Nicad for example like top be fully discharged before u charge again and the Smart charger has a function for de-charging.. But I would stay clear of Nicad.

Also, just elaborating on another post - the charger is 400mA, 2300 mAh (milliAmpHours) batteries. So for every hour they will charge 400mA. Hence it will take 6hours to get 2400mAh


Offline Trumpkin

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #18 on: June 16, 2008, 02:09:06 PM »
Quote
Might need more than 6V tho. Thats enough just to run your microcontroller - u want a seperate supply for motors etc. if u want some power.
Nope 6 volts is fine I know I can run atleast 2 servos and a microcontroller on 6 volts.
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Offline Admin

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #19 on: June 18, 2008, 03:30:08 PM »
Are you guys sure NiCad's get cold during a charge? Its been a long time since I've used them (in fact, I'm selling all the ones I have), but I can't seem to find a reference online to verify . . .

Offline airman00

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Re: $50 Robot Cheap 6V NiMH Battery
« Reply #20 on: June 18, 2008, 04:47:24 PM »
yea i'm sure

I saw it today in Robot Builder's Bonanza... I think
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