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Old 11-12-2008, 07:47 PM   #1
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Default lipo in b4 buggy

I wanted to put a trakpower or checkpoint battery in my b4. any problems fitting them in car. what would be the biggest i'd want to go with?
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Old 11-12-2008, 08:16 PM   #2
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you can run either a 30C 3600mAh or you can run the 25C 4900mah. They both fit great without any modification. Checkpoint are for them by Trakpower so they are the same cells.


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Old 11-13-2008, 07:33 AM   #3
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you the man thanks. would the 4900 make it to heavy?
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Old 11-13-2008, 07:36 AM   #4
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Quote:
Originally Posted by turtlebmx View Post
you the man thanks. would the 4900 make it to heavy?
It does not matter what LiPo you run in the B4, its still to light. You will need to add weight to the B4 with a LiPo battery pack in it.
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Old 11-13-2008, 07:42 AM   #5
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I picked up my trakpower 4900's from bulldawgrc and I have added alot of weight to both my B4 and T4. One ounce so far on the T4 and 1.25 ounces on the B4. You will add weight to any car with any lipo.
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Old 11-13-2008, 06:36 PM   #6
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cool thanks guys
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Old 11-13-2008, 06:39 PM   #7
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i figured you would have to add more that one ounce.. hmmm i guess i have not really messed with lipos to much
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Old 11-13-2008, 06:46 PM   #8
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Just an fyi: don't use the checkpoint 5400's. They are only rated at 16C and there is a very noticable difference in punch between them and the 25C trackpower 4900s. Feel free to use the newer 4900 checkpoints though...exact same thing
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Old 11-13-2008, 06:54 PM   #9
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You want to get at least 4oz added with most lipo packs. You need even more if you want to equal the weight of a nimh pack, but I find a lot of guys are pretty happy with 4-5 oz added.

For reference, a typical IB4200 6 cell pack weighs 15 to 15.5 oz, and an average 4500-5000 lipo is about 9 to 9.5 oz and 3200-3600 are only 6-7 oz.

I run a 4.2oz lipo-lead plate in my B4, under my Core 5000 pack, and a couple battery foam size pieces behind the pack for a total of about 5.6 oz of added weight.

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btw, any added weight plate under the pack might require some dremel work to the batt strap or shock tower to fit well in a B4/T4.
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Old 11-13-2008, 06:58 PM   #10
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Dam lipo noobs.....
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Old 11-13-2008, 07:11 PM   #11
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Quote:
Originally Posted by Krio View Post
Just an fyi: don't use the checkpoint 5400's. They are only rated at 16C and there is a very noticable difference in punch between them and the 25C trackpower 4900s. Feel free to use the newer 4900 checkpoints though...exact same thing
As I understand it the first Checkpoint 5400s had the wrong cells, weren't even 16C I don't think. I believe they will either exchange the battery, or you can keep it and they will sell you a new one for around half price.
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Old 11-13-2008, 07:11 PM   #12
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well i did not think that one ounce sounded right...
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Old 11-13-2008, 08:37 PM   #13
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i was looking at some 5400 checkpoints, how do you know which ones are the bad ones?
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Old 11-13-2008, 08:48 PM   #14
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Quote:
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i was looking at some 5400 checkpoints, how do you know which ones are the bad ones?

Dude just get something else.

I'm going with some smc 5000 28c lipos soon, I have driven my boys car with one and they rip !

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Old 11-13-2008, 09:32 PM   #15
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would less punch be good in some instances? less wheel spin in mod, with the 16c rated pack?
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