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Old 03-03-2008, 02:57 PM   #16
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Exactly! JLR starter box is designed for a 7.2 volt operation (2 x 6 cell pack in parallel) the reason it has 2 x 6 cell packs is for increased capacity (parallel) not increased voltage, unlike other boxes that are designed to be operated on a 14.4 volt (2 x 6 cell packs in series)
Pardon my ignorance... But I believed that putting two batteries in parallel equalled smoke (short circuit). I took a circuits class last semester and this was one of the things I learned. Does it have some sort of circuitry to regulate the voltage between the two batteries?
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Old 03-03-2008, 03:04 PM   #17
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Pardon my ignorance... But I believed that putting two batteries in parallel equalled smoke (short circuit). I took a circuits class last semester and this was one of the things I learned. Does it have some sort of circuitry to regulate the voltage between the two batteries?
Perhaps you should take a 'refresher' course! Putting the packs in parallel doubles the capacity while voltage remains the same. No smoke.
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Old 03-03-2008, 07:27 PM   #18
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Using a Mugen starter box with a single Maxamps 11.2 3000mah....
It wont quit and has not given up and its on the second season now.....Connected with a set of deans plugs... No drain no strain and easy start even for new engines....
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Old 03-03-2008, 07:41 PM   #19
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Perhaps you should take a 'refresher' course! Putting the packs in parallel doubles the capacity while voltage remains the same. No smoke.
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Old 03-19-2008, 03:11 PM   #20
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LiPos are ideal for starter boxes. The extra current available from these packs is awesome. My two 7.2 3300 NiMH packs had no power turning over a new .21 compared to these. I have two parallel 3S2000s in one starter box and it is only taking about 1100 mA back after a long day of starting two cars. I'm going to try a single 3S2000 in my other box. It should be plenty for day with a well tuned and broken in car.
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Old 03-19-2008, 04:29 PM   #21
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this pack from pro tek rc is made for starter boxes with 4000mah
http://www.amainhobbies.com/product_...ducts_id/16867
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Old 03-25-2008, 11:01 PM   #22
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Here is an awesome LiPo battery monitor (and power "on" indicator light) for your LiPo starter boxes. I have them in two starter boxes and my tire truer. Click on LiPo battery monitor.
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Old 04-08-2008, 06:53 PM   #23
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Gah, so many battery choices! What do you recommend for a starter box that's going to turn over my NTC3?
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Old 04-08-2008, 07:52 PM   #24
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My $30 Ebay Apex 3S2000 started my .21 fine all day no problem. Took ~500mA to recharge.

Remember LiPos deliver much more current so you won't have difficulty with cold engines turning over etc. Also a 2000 mA capacity LiPo can deliver full power much longer than an equivalent capacity NiMH. The starter box feels like it doesn't have a battery in it at all.
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Old 04-09-2008, 12:06 AM   #25
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Gah, so many battery choices! What do you recommend for a starter box that's going to turn over my NTC3?
I have this battery in two of my starter boxes. Turns over my sedan, and truggy.

http://www.horizonhobby.com/Products...rodID=LOSB9821
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Old 04-09-2008, 10:52 AM   #26
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I use these in our two Starter boxes.

http://www.ultralinehobbies.com/inde...=559&parent=72

http://www.ultralinehobbies.com/inde...=649&parent=82

Both work Awsome...
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Old 04-09-2008, 01:29 PM   #27
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http://www.htbatteries.com/Public_ht...ox%20Packs.htm

That's what I have in my Associated box. I'll get another one for my plastic (non JLR) Ofna box. It works wonders, and charges just fine with my digipeak3
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Old 04-09-2008, 04:26 PM   #28
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Here is a link to the battery I am using now...

http://www.maxamps.com/Lipo-3000-111-Pack.htm

So far so good and no problems at all
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Old 04-14-2008, 07:25 PM   #29
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so guys 2 7.4 v 4700 mah lipo would work on a mugen starter box or serpent powerstart?
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Old 04-15-2008, 06:23 AM   #30
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Yes, but 14.8V is overkill IMO as is 4700 mA. That should last a week. 3S 11.1 V is plenty of voltage.

The reason the 7.2 V packs are so popular in starter boxes is that they are the most common and available stick pack size. Also every cell you add helps a little to make up for the fact that the NiMH packs can't deliver much current. There is no need to spin the starter box motor as fast as it spins on 15V. 11.5V with 80 amps available current flow is amazing trust me. Your starter motor will like it better too.

I'd recommend something like this if you want a large reserve in capacity. I only run a 3S2000 and it only takes 500-600 mA after starting my 1:8 scale all day.
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