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06-28-2008, 06:24 PM
| #1 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
|  battery dies fast
so I got my crawler done I have a tq3 radio system and 4 wheel steer, and have noticed that the battery runs down pretty fast. Do I need to get a cc bec to connect to one of my servos? or will I have to run to tq3 receiver on a seprate battery? thanks.
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06-28-2008, 07:10 PM
| #2 |
| Rock Crawler Join Date: Dec 2005 Location: Mesa
Posts: 602
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What type and capacity of battery?
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06-28-2008, 07:18 PM
| #3 |
| RCC Addict Join Date: Apr 2005 Location: Eden Prairie, MN
Posts: 1,202
| What kind of motor and servo information could help too... FYI, when asking a question, the more info you give the better the answers. |
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06-28-2008, 07:44 PM
| #4 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
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I have a 8 cell 1500mah split pack from tcs and the motor is a 65 turn integy, and I have two hitec 645 mg servos for the 4ws.?
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06-28-2008, 10:17 PM
| #5 |
| Quarry Creeper Join Date: Feb 2008 Location: ICE BERG HELL
Posts: 202
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I am not going to lie, i think the pack is part of the problem,lol. I have been trying out those same cells, and not very happy with my run times just on a servo and motor. Your motor and 2 of the servos shouldnt create a big issue being I can run a 55T and a single 645 on a 1320 2 cell lipo for better part of an hour.
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06-29-2008, 09:19 AM
| #6 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
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ok but does anybody have a split pack that's like 3000 mah? or is there some instructions somewhere that would show me how to build my own battery pack? cause I can't afford to switch to a lipo pack and charger right now.
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06-29-2008, 10:47 AM
| #7 |
| Rock Crawler Join Date: May 2007 Location: lacey
Posts: 833
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how fast is pretty fast? how much does the rig weigh? how's your gearing?
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06-29-2008, 10:59 AM
| #8 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
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i'm not sure how much my rig weighs. or how fast the battery dies I will have to time it when I go crawling next. but my gearing is a 21t pinion gear and a 87t spur gear. should I change my gearing?
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06-29-2008, 12:14 PM
| #9 |
| I wanna be Dave Join Date: Mar 2008 Location: In the Dark Edges of your Mind
Posts: 6,386
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You could change your pinion to something like a 14 tooth. When I went from a 14 tooth to a 17 tooth I noticed my run time was reduced considerably. All split packs will be about the same. That said, I get 45 min to an hour out of my 6 cell 1500's. |
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06-29-2008, 12:35 PM
| #10 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
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ok guys I get about 15min out of my 8cell split pack if I change my pinion gear how much longer will I be able to run for? I will see how much it weighs later. Right now I'm thinking about buying a different chassis to put the drive train on.
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06-29-2008, 01:49 PM
| #11 |
| I wanna be Dave Join Date: Mar 2008 Location: In the Dark Edges of your Mind
Posts: 6,386
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Sounds like you have a bad cell or pack. Did you break them in with a nice long slow charge? Those batteries shouldn't be charged at more than a 1 amp rate (or less if possible) for the first several charges.
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06-29-2008, 10:20 PM
| #12 |
| Quarry Creeper Join Date: Sep 2007 Location: Duchesne
Posts: 377
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I charged it at 1.5 amps like tcs said. but I think your right about having a bad pack cause it charges for like five minutes and then the light on my charger starts blinking, so I think that I will have to buy another one and see what happens.
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