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Old 03-17-2011, 05:14 AM   #1
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Default Rookie Question: Batteries for a NITRO Truggy

I know this topic must have been kicked around like a soccer ball. I did some searching but the answer I was looking for did not pop up. So here goes.

I am nearing the finish line with my build of the "scratch and dent" Tamiya 801Xt. And so it is time to meet head on with this question of batteries; NiMH, LiPo, AA Alkaline, 12v gel cells, etc. And of course Id like to only buy one type of battery charger (the crowd breaks out in laughter).
The way I see it the transmitter needs batteries, the receiver needs some as well. The starter needs batteries and I have read there at least 3 preferred types.
I read more than one account of gel cell 12v for the starter, and isn't even discussed in the directions.
I have an old charger from my RC 10 days, but that's about it.
I'll buy dinner for the person that shows me a standardized setup, that doesn't require split second decisions on when to disconnect wires or the thing "blows".
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Old 03-17-2011, 06:16 AM   #2
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Opinions vary, but if you are not afraid of lipo batteries, that is the way to go, IMO.

That being said, nimh batteries still get the job done and are relatively inexpensive.
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Old 03-17-2011, 07:28 AM   #3
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You don't need lipo in the starter box or for a receiver battery. The only.place I use lipo is in my transmitter because it has a low voltage warning. The only real way lipos are dangerous, assuming you charge them correctly, is if you discharge them below their recommended "safe" voltage, which I think is about 3.3V per cell.

12V gel cell is just a lead acid battery, like you'd run in a motorcycle or jetski. They're very starter box friendly, it will make the box heavy, but last I checked light starter boxes never reduced my lap times.

Stick with a LiFe receiver pack, they're much safer than LiPos, you don't have to run a voltage regulator or high voltage servos with them either as their nominal voltage is 6.6V. They can be deep discharged without puffing or "blowing up" so their ideal for receiver batteries in nitro applications.

As for a charger, if you want to go the LiFe route, that old charger wont cut it. Most of the new chargers will handle every type of battery, have a look on amain.
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Old 03-17-2011, 10:33 AM   #4
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Lipo in everything you can. Starter box, receiver and depending on the radio lipo for it to.

Im the scariest person here regarding Lipos, 3 years running and not one problem.

Just make sure the charger you get is AC/DC.
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Old 03-17-2011, 10:44 AM   #5
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lets just put it this way ur not ep ur not worring bout power draw or low voltage drop as long as u got power and fuel ur good to go talk whith ur lhs and see what they have they should help you out the most
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Old 03-17-2011, 10:48 AM   #6
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+1
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Old 03-17-2011, 11:21 AM   #7
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Quote:
Originally Posted by AZRC4Me View Post
You don't need lipo in the starter box or for a receiver battery. The only.place I use lipo is in my transmitter because it has a low voltage warning. The only real way lipos are dangerous, assuming you charge them correctly, is if you discharge them below their recommended "safe" voltage, which I think is about 3.3V per cell.

12V gel cell is just a lead acid battery, like you'd run in a motorcycle or jetski. They're very starter box friendly, it will make the box heavy, but last I checked light starter boxes never reduced my lap times.

Stick with a LiFe receiver pack, they're much safer than LiPos, you don't have to run a voltage regulator or high voltage servos with them either as their nominal voltage is 6.6V. They can be deep discharged without puffing or "blowing up" so their ideal for receiver batteries in nitro applications.

As for a charger, if you want to go the LiFe route, that old charger wont cut it. Most of the new chargers will handle every type of battery, have a look on amain.
I agree with this, LIFE packs are far superior to Lipo rx/servo packs.
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Old 03-17-2011, 02:50 PM   #8
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I'd recommend Lipo's for all your electronic equipment. With proper care and battery managment you'd have no issues and extended performance.
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Old 03-17-2011, 03:13 PM   #9
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Quote:
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I'd recommend Lipo's for all your electronic equipment. With proper care and battery managment you'd have no issues and extended performance.
Extended performance over LiFe packs? Please elaborate...
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Old 03-17-2011, 04:23 PM   #10
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Run a 4S 2500+ mAH Lipo for your starter box. You can buy a 6 dollar low voltage alarm if you want, it makes it safer i guess, although I don't own one.

This is the battery I use in my starter box..

http://www.hobbyking.com/hobbyking/s...idProduct=9182

I would run Lipo RX packs as well. If you are using standard voltage servos, you will need a regulator, but if you run HV servos, you can run lipo direct.

Not sure what fits in the Tamiya, but I run these sometimes and I know they would fit..Never had a problem with them, and I've ran them over 30 minutes before.

http://cgi.ebay.com/7-4v-900mah-15c-...item33660963ce

I run the Energizer Lithium AA's in my remote. They're not the rechargeable ones, but last a LONG time. I run the DX3R and I don't think there is a lipo that is made for it. If there is I want to know!

These are the AA batteries I use..

http://www.amazon.com/Energizer-Ulti.../dp/B00003IEME

I use a Thunder AC6 charger that charges everything I have. And it's about 50 bucks.

This is the charger I use, does everything I need..

http://www.amazon.com/Thunder-Balanc.../dp/9269806723
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Old 03-17-2011, 04:59 PM   #11
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buy 2 1600mah NImh RX packs

Rechargable AA's for the Tx

and a gel cell for the box, you can charge those with a 12v trickle charger.

Thats very basic and works very well.
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Old 03-17-2011, 05:16 PM   #12
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Quote:
Originally Posted by dburt86 View Post
buy 2 1600mah NImh RX packs

Rechargable AA's for the Tx

and a gel cell for the box, you can charge those with a 12v trickle charger.

Thats very basic and works very well.
+1 Thats exactly what I run, except in my transmitter I run energizer lithium disposables. I use a Pro peak Prodigy II charger and it charges all my batteries. It will also charge lipos if you decide to try them out.
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Old 03-17-2011, 11:18 PM   #13
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I use 4S 5000mah lipo's in my startbox (from my brushless car )
2S lipo in my transmitter. The transmitter gives a warning a 6.6V so you don't overdischarge the lipo.
And I run a 2S 1600mah Life as receiver battery because I don't need a regular with it. My servo's are not HV and didn't wanted to run a regulator.
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