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Old 03-20-2008, 06:07 PM   #1
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Default A123 lithium ion battery in a starter box???

So I searched around and came up with squat for my dilemma.

Has anyone used lithium ion batteries in their starter box? Specifically a 13.2V 4-cell? I need to get a battery for my Losi starter box. I was gonna get a 14.8V lipo but then I realized my charger will charge A123 cells so I started leaning that way.

I've weighed out the pros and cons...

Cost of each is similar. The lipo is $70 and the A123 is about $80 for 4 cells that I will have to assemble myself, so that cost doesn't include wire or anything.

The big pro for the A123 lithium ion is that it has major amperage rating; 130A burst rating. The lipo I'm looking at only has about a 60A burst rating. I've stalled out my old starter box plenty of times and I know that draws some amps and I'm worried I'm gonna fry the battery. Especially when I break-in a motor.

The Li-Ion is more stable and will also charge in 15 minutes. The downside is that it's 13.2V whereas a lipo is 14.8.

So would 1.6V make that much of a difference?
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Old 03-20-2008, 08:53 PM   #2
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I've never use the A123 for a starter box but another pro is you can discharge them all the way down where you would have to worry about your lipo blowing it up with no low volltage cutoff. And I think 13.2 volts sould be pleanty off prower.
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Old 03-20-2008, 11:34 PM   #3
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I've used 2 x 3s1p packs in my starter box with no problems. 19.8v , insane motor speed, super light, and they charge in 15 mins.
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Old 03-21-2008, 12:18 AM   #4
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I use the losi starter box lipo in the losi starter box. PLENTY of power. Turns over my Sirio CL7B STI .21 engine with ease!!!
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Old 03-21-2008, 01:37 AM   #5
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I have no doubt that lipoly has the power but I'm so paranoid that I might jam the starter wheel up in a rush or something and pop the battery by drawing to many amps. I run lipos, but only in low amp draw application like my crawlers. I guess part of me just wants an excuse to finally use the A123 function on my charger. The low voltage aspect of lipos bothers me a little too, even though I've run mine without LVCs without incident.... probably just jinxed myself.

I thought of adding a few more cells but again, my paranoia kicks in thinking I might burn out the motors running to high of a voltage, but if you can run almost 20V with no problems, I guess I can run a couple extra cells without much worry...
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Old 03-26-2008, 03:56 PM   #6
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I was in my hobby shop yesterday and a guy came in talking about this and the owning punched in the web site for HT batt and he showed us a starter box li-po that was nice try there they should be able to answer ur questions
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Old 03-26-2008, 05:25 PM   #7
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Thanks for the info. That was one of the places I looked. It seems that all packs used in a starter box are around 2100mah and only 20C which surprised me. I figured you could really pull some amps if the box stalls out.
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Old 03-27-2008, 02:42 PM   #8
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i use 4s a123 packs in all my boxes with awesome results. Voltage isnt always everything and like you said the a123 packs have a high amperage rate. I would highly suggest it.
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Old 03-27-2008, 02:43 PM   #9
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p.s. i usually get 2 race weekends on one charge.
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Old 03-27-2008, 03:14 PM   #10
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Good to know... I think I might just go that route then. I was just tearing into my box to re-wire it for Deans plugs and notice how puny the motors are compared to those in my Ofna truggy box. I'm may try to mod it to fit those fatty 750 motors
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Old 03-28-2008, 06:55 PM   #11
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i use the losi 14.8v battery in my losi box. Worry free and last all weekend long. Plus i didnt have to wire it up other than changing the sex of the lead plugs.5 mins and it was ready for action. JUST MY 2 Cents
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Old 03-28-2008, 09:23 PM   #12
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If you look for them you can find a123 cells for like $10 a piece, people have been taking dewalt 36 volt packs(10 a123 cells) & using them for r/c packs. You can pick up the dewalt packs for under $100.
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