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View Full Version : Rx pack which one can you suggest ??



MAXAMUS
10-28-2008, 11:37 AM
Hi guys

so the no power saga continues lol !!

so iam looking at getting an Rx pack but wondering which is best obviously need it to be lightweight and suitable to fit in the BJ so i throw the hatch open guys looking for your input as Ive never had to use one before whats best lipo or nimh ??

please post your suggestions and help me make a decision so i can get this beast back on the water

MAXAMUS


PS Ive a stock drive for sale
http://cgi.ebay.co.uk/BLACKJACK-26-RTR-STEERABLE-DRIVE-SYSTEM-NEW_W0QQitemZ230303503370QQcmdZViewItem?hash=item2 30303503370&_trkparms=72%3A1301%7C39%3A1%7C66%3A3%7C65%3A12%7C 240%3A1318&_trksid=p3286.c0.m14

Rex R
10-28-2008, 01:01 PM
three criteria for selecting an rx pack 1) size(will it fit) 2) runtime 3)can you charge at the 'pond'. once you answer those you'll be well on your way to selecting one(or get a ubec). as an example; for my no step 1(19t) space is kinda tight, run times are about 3-4min(roughly 15min max), and I can charge at the pond. so I'm using a 5cell hump pack (2/3 aa) 350 mah, it fits and has enough capacity. for the mean machine I've got room so I went w/ a 5cell hump sub-c at 1600 mah...I can run that one for quite some time ;)

Fluid
10-28-2008, 08:57 PM
LiPos will over-volt either the receiver or the servos. I suggest a 5-cell NiMH pack, a 1400mAh pack is not too big, an extra ounce or two of weight is nothing and may help keep the boat on the water if you make mods. I use both 350 mAh and 1200mAh 5-cell packs in all my boats, the small pack only in the LSH boat. Get a switch while you are at it....



.

ApacheDude
11-30-2008, 09:54 PM
I just picked up a super small 4 cell pack rated at 750 mah. Fits really well in the BJ...

Brand is Hitec, got it from HobbyPeople in town.

bitton79
12-02-2008, 02:51 AM
hey guys,
I'm new to r/c boating so forgive me for my stupid question...
Why do i need Rx pack for. dosn't the receiver gets it's power from the boat's lipo packs??
I'm running 2x2s1p 5300 mah flightpower lipo packs. the receiver gets its power from them dosn't it?
Pls assist.

MAXAMUS
01-19-2009, 12:14 PM
hey guys,
I'm new to r/c boating so forgive me for my stupid question...
Why do i need Rx pack for. dosn't the receiver gets it's power from the boat's lipo packs??
I'm running 2x2s1p 5300 mah flightpower lipo packs. the receiver gets its power from them dosn't it?
Pls assist.

it all depends on the type of esc your running some like you say take the power from your lipo's while others require a seperate power pack to run servo's etc iam running a top end etti esc which requires a rx pk

AndyKunz
01-19-2009, 01:30 PM
Losi has a nice 2S LiPo rx pack, 300 mAH.

Andy

MAXAMUS
01-25-2009, 12:47 PM
ok so ihave been running my BJ with
ammo motor
etti 150amp esc
fullers cat hardware
x642
2x 6600mah 20c lipo's
futaba r606 2.4 ghx rx

and powered by a 1200mah 6v nimh humpback rx pack

but iam only getting 1 run from it when i say 1 run iam talking about roughly 15min duration from the pack rated at 1200 mah which to me is a poor proformance is this right ?? the pack is new and only been charged a handfull of times........

should i go for a bigger mah pack if this is the norm or go lipo ??

please advise guys ! :unsure: