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-   -   lipo in b4 buggy (https://www.rctech.net/forum/electric-off-road/253458-lipo-b4-buggy.html)

turtlebmx 11-12-2008 06:47 PM

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?

Bulldawg RC 11-12-2008 07:16 PM

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.


http://www.BulldawgRC.com

turtlebmx 11-13-2008 06:33 AM

you the man thanks. would the 4900 make it to heavy?

REVO-Beat-U 11-13-2008 06:36 AM


Originally Posted by turtlebmx (Post 5047300)
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.

Krio 11-13-2008 06:42 AM

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.

turtlebmx 11-13-2008 05:36 PM

cool thanks guys

jamminnay 11-13-2008 05:39 PM

i figured you would have to add more that one ounce.. hmmm i guess i have not really messed with lipos to much

Krio 11-13-2008 05:46 PM

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

glassdoctor 11-13-2008 05:54 PM

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.

www.teamfusionracing.blogspot.com

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.

Jason Pelletier 11-13-2008 05:58 PM

Dam lipo noobs.....:lol:

Dave H 11-13-2008 06:11 PM


Originally Posted by Krio (Post 5049379)
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.

jamminnay 11-13-2008 06:11 PM

well i did not think that one ounce sounded right...

turtlebmx 11-13-2008 07:37 PM

i was looking at some 5400 checkpoints, how do you know which ones are the bad ones?

Jason Pelletier 11-13-2008 07:48 PM


Originally Posted by turtlebmx (Post 5049781)
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 !

Trust me. You will not be sorry !

el Bourlando 11-13-2008 08:32 PM

would less punch be good in some instances? less wheel spin in mod, with the 16c rated pack?


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