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T-REX 450 › What battery size for trex 450??
03-14-2010 04:41 AM  8 years agoPost 1
kyrotorhead

rrApprentice

Louisville, Ky.

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Hello, i posted a topic in general electric discussion on this issue, maybe I will get more info here..I bought a trex 450xl and need to know what battery i need to run in this bird, I don't do any 3d flying, has align brushless motor # 430xl and align esc #rce-bl35x (5.5-16.8v @35amp) I dont want the cheapest battery but don't need the best. Im new to lipo helis and don't know where to start as far as battery size, discharge size, voltages?? Can anyone help me with this and explain in normal terms the battery sizes and specs. Im also gonna need a charger/balancer for this heli, any suggestions? Any help will be greatly appriciated! Thankyou..Robert

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03-14-2010 04:50 AM  8 years agoPost 2
Spitfire1

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Perth Australia

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Any 3 cell 11.1 volt pack in the 2000 - 2200 mah range should be OK, maybe 1800 mah is a bit small and 2500 mah bit big but could probly still do it, 20 - 40c discharge, 30c is about normal I would say.

Turnigy packs are good and cheap also, but even the more expensive brands are not to expensive for that size of pack, I dont think the expensive packs are any worse or any better than the cheap ones.

There are many charges rangeing from $20 - $500, if it does 3s lipos it will work, something like a BC8 charger is good, Hobbyking do BC8 knockoffs for about $50.

A Swallow charger is the only one I can think of that you can plug directly into the mains, most you will need a car battery or buy a seperate power supply to use in the mains.

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03-14-2010 07:16 AM  8 years agoPost 3
sjarochos

rrApprentice

plant city,florida

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I' m runing a 11.1 2200 mha 20c 3cell on my trex sport and runs perfect. I just place an order at hobbyking and the prices of bateries are good. I have IMAX6 bat. Charger-balancer and it charges mi bateries in about 55 min.

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03-14-2010 02:05 PM  8 years agoPost 4
NQNA

rrElite Veteran

USA

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For 3S On a Sport (Medusa 3400KV) I'm running:
G4 Pro Lite V2 20C TP2100-3SPL2 11.1V 2100 42.0A 84.0A 103.0 x 35.0 x 21.0 147g Stock $47.99

For a 4S V2 SE (Neu 1107-2Y) I'm running:
G4 Pro Lite V2 20C TP2100-4SPL2 14.8V 2100 42.0A 84.0A 103.0 x 35.0 x 28.0 192g Stock $69.99
And the older TP2000 V1 (discontinued)

For a 3S Pro (Align 430SP) I'm running:
G4 Pro Power 40C TP2250-3SP45 11.1V 2250 101.0A 202.0A 102.0 x 35.0 x 26.0 193g Stock $67.99

(Prices are from RCLipos.Com)

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03-14-2010 02:35 PM  8 years agoPost 5
kyrotorhead

rrApprentice

Louisville, Ky.

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Thankyou for the great info guys!! Looks like everyone is running about the same size batteries, I have been looking at the batteries at hobbyking and I'll probably place an order today. Anyone know where i can get a used charger/balancer?? Thanks again..Robert

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03-14-2010 05:13 PM  8 years agoPost 6
kyrotorhead

rrApprentice

Louisville, Ky.

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I was on hobbyking comparing brands of the same battery size, I did the metric conversion and appears that size may be an issue, do these batteries go down onto the battery tray under the front servo's? Boy, some of those might not fit??

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