View Full Version : losi lst eating batteries
fishstix
07-25-2005, 08:10 AM
I have a friend who just bought a losi lst. He only has two takes of fuel through it and it keeps eating batteries in the 4 cell pack. He told me the first set were el cheapo batteries. The second set were a little more expensive(duracell or energizer). Is he going through batteries because of the dual servos for the steering?? he has put in an order at the lhs for the flat pack. Will this cure the problem or do he need to try to modify for dual battery packs?? Or should he just buy a few of the flat packs so every time he runs he changes packs? Thanks in advance.
You need a 6volt reciver pack.
RCMadMatt
07-25-2005, 11:03 AM
Like RrR said, get a rechargeable receiver pack. It was stupid of Losi not to put one in that truck, considering the size of the truck and all of the servos in it. It's a battery drainer for sure!!
Matt
Ball Racing
07-25-2005, 12:33 PM
Also check end points on steering and throttle,
EPA for steering only needs like 80% of it's 125%
The wheels will only go so far then the servo struggles trying to turn more...
That will drain the batteries quick......
savagemachine
07-25-2005, 02:57 PM
Go for a 6v hump pack 1200 mah no less or else you will be back to square one as you are with the 4AA cell batteries.I have changed my servo on my savage and found exactly the same so i have upped my hump pack and seems to work fine know
Savagemachine
zakerid
07-25-2005, 07:16 PM
many people with LST's run "sub c" cell receiver packs to get longer life. either way dump the 4 cell holder. to be honest losi should include a NiMH pack with that truck since it has so many servos. it's not like it comes with the typical cheapo radio...
Joe Brinduse
07-25-2005, 09:21 PM
[QUOTE=fishstix] he has put in an order at the lhs for the flat pack. Will this cure the problem
Thats what i put in and i can run all day :)
Do the servos make sound when just sitting still, no matter where the wheels are? This means the servos are fighting each other to center themselves and will drain the battery quickly. It did this in my Revo as well, so I centered the servos and it's all good now.
4 AA batteries = 6v
5 rechargable Rx batts = 6v
This is because each alkaline battery is 1.5V. 1.5V x 4 batts = 6V. Each rechargable mini sub C battery is 1.2V, so that's why there is 5 of them; 1.2V x 5 batts = 6V. It doesn't mattery what kind of pack it is, the servos are most likely fighting each other. The only difference between alkaline Rx batts and a Rx pack is that you can recharge the pack after it keeps depleting itself too quickly. :)
Minty Fresh
07-26-2005, 11:10 AM
A good setup to use on the LST, is the combo packs. You use a flat 5 cell pack, and a 5 cell hump pack. They run parallel...and give you a lot of run time between charges. This is what I run.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5989332695&category=19168&rd=1
doesgo
07-26-2005, 01:17 PM
I'm with GTX in theory, but for whatever reason our LST just wouldn't work with the four-cell AA pack (even with new batteries) and needed a five-cell rechargeable pack even to get through the break-in! Thank goodness I had a failsafe installed...
I never even attempted to run the 4 cell. I strapped a 5 cell to the front tower and fired it up. The 5 cell delivers better performance to the servo's, they are quicker and have more torque. The truck barely turns itself with a 4 cell.
I don't run a failsafe on my LSt because it is painfully obvious when the pack is low. Throttle response is "here and there" and steering is painfully sluggish.
My pack is protected by the tower, and also out of the way at the same time.
http://www.lextech.org/images/stuff/LSTsale%20003.jpg