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LiPo Question

Old 05-01-2012, 12:18 PM
  #1  
jkinosh
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Default LiPo Question

GOign to be ordering a ECX Torment for my son, and not sure if I should get Hardcase Lipo or if the Normal ones would be fine.

I will also be ordering a [link=http://www.hobbypartz.com/libaprforcar.html]Low Voltage Cutoff[/link] and [link=http://www.hobbypartz.com/60p-dyc-1003-accharger-blue.html]Dynam Supermate DC6 DoublePower[/link]
Looking at the following

http://www.hobbypartz.com/98p-25c-4000-2s1p.html

http://www.hobbypartz.com/98p-25c-40...se-direct.html

http://www.hobbypartz.com/77p-sl4000-2s1p-30c-2222.html

http://www.hobbypartz.com/77p-sl4000...-hardcase.html



Thanks
Old 05-01-2012, 01:08 PM
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guver
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Default RE: LiPo Question

It really doesn't matter , many surface users prefer hardcase because they are more durable against physical damage.
Old 05-01-2012, 01:09 PM
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cumquat
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Default RE: LiPo Question


ORIGINAL: jkinosh

GOign to be ordering a ECX Torment for my son, and not sure if I should get Hardcase Lipo or if the Normal ones would be fine.

I will also be ordering a [link=http://www.hobbypartz.com/libaprforcar.html]Low Voltage Cutoff[/link] and [link=http://www.hobbypartz.com/60p-dyc-1003-accharger-blue.html]Dynam Supermate DC6 DoublePower[/link]
Looking at the following

http://www.hobbypartz.com/98p-25c-4000-2s1p.html

http://www.hobbypartz.com/98p-25c-40...se-direct.html

http://www.hobbypartz.com/77p-sl4000-2s1p-30c-2222.html

http://www.hobbypartz.com/77p-sl4000...-hardcase.html



Thanks
the first and third are no go's. it isnt a good idea to use soft packs in a surface rc. they are relatively easy to puncture which could turn the truck into a fireball. i had the gens ace 5000 last year and they were pretty good, especially for what i paid. it seems hobby parts us no longer the undoubted best deal. last year, the ezrun 60A systems were $70 and the 5000mah 40c packs i had were $30 each. i have never used a sky so i cant comment on their quality.
Old 05-01-2012, 02:11 PM
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Default RE: LiPo Question

I have an ecx torment that I have been running since day 1 on 2s lipo packs.

while a hardcase is sturdier, softcased packs are fine.

I had a 3s softcase that flew out of a car going 50+mph (forgot to but battery bar on) and the pack flew across pavement tumbling several times. it was fine, still use it today.

Also, on the torment you will need to do some small mods for a 2s 5000mah pack (soft or hardcase) to fit.

those twist locks need to be raised up. unscrew them (from underside) and then place a couple small washers between the chassis and twist locks.

Then, on the ESC tray you have to loosen the foward 2 screws a few turns.

I have a XL-5 esc. But I dont bother with a LVA or cutoff. With any power system you will notice a sharp drop in power when its time to stop running the lipo pack. So, a low voltage cutoff is safer, but not nessesary.

I use the sky lipo 2s 30c 5000mah packs off hobbypartz, as well as the thunder AC6 charger. Been very happy with them.
Old 05-01-2012, 03:41 PM
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Default RE: LiPo Question

ORIGINAL: nitrosportsandrunner

I have an ecx torment that I have been running since day 1 on 2s lipo packs.

while a hardcase is sturdier, softcased packs are fine.

I had a 3s softcase that flew out of a car going 50+mph (forgot to but battery bar on) and the pack flew across pavement tumbling several times. it was fine, still use it today.

Also, on the torment you will need to do some small mods for a 2s 5000mah pack (soft or hardcase) to fit.

those twist locks need to be raised up. unscrew them (from underside) and then place a couple small washers between the chassis and twist locks.

Then, on the ESC tray you have to loosen the foward 2 screws a few turns.

I have a XL-5 esc. But I dont bother with a LVA or cutoff. With any power system you will notice a sharp drop in power when its time to stop running the lipo pack. So, a low voltage cutoff is safer, but not nessesary.

I use the sky lipo 2s 30c 5000mah packs off hobbypartz, as well as the thunder AC6 charger. Been very happy with them.
Like everything it all depends how it hits
lets face it I've had RC's take 40mph whacks and got 0 damage, and then I've had the same RC tap something and need $50 in parts. Its the same with lipos
Only thing is make sure they fit the battery compartment properly, and that the wire won't be getting in the way. I've had a lipo in my tamiyas that would fly out at the slightest bump no matter what I did, also the wire would prevent the steering from centering after a left turn it was annoying as hell. So glad I got the hard case turnigy with the wires exiting the front
Old 05-01-2012, 11:58 PM
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Default RE: LiPo Question

Many sanctioned racing rules REQUIRE hard packs. Otherwise go soft. It's that simple.
Old 05-02-2012, 04:42 AM
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Default RE: LiPo Question

Nothing wrong with softpacks in surface vehicle use.  Make sure they are secured to the vehicle properly. 

The rest of what I had to say is pretty much wrapped up with "X2 to what Foxy and SyCo Venom said"
Old 05-02-2012, 06:23 AM
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Default RE: LiPo Question

All depends how the exposed the battery is. For example some of the older have there batteries hanging out both sides with no protection and some are only mm of the ground. with those a hard case is a must, unless u like looking at ur new lipo smoking out ur new car.

But thats no problem with the ECX Torment... the battery on that is well protected. so i wouldent worry about punchering it.
Honestly get what ever is cheaper. U dont need a hardcase but it wont hurt
But........... If u plan on doing some really stupid stunts like the XXX main guys, get the hard case... Dont think i would try jumping a 2 story house with a soft pack.
Old 05-02-2012, 07:20 AM
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jkinosh
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Default RE: LiPo Question


ORIGINAL: nitrosportsandrunner

I have an ecx torment that I have been running since day 1 on 2s lipo packs.

while a hardcase is sturdier, softcased packs are fine.

I had a 3s softcase that flew out of a car going 50+mph (forgot to but battery bar on) and the pack flew across pavement tumbling several times. it was fine, still use it today.

Also, on the torment you will need to do some small mods for a 2s 5000mah pack (soft or hardcase) to fit.

those twist locks need to be raised up. unscrew them (from underside) and then place a couple small washers between the chassis and twist locks.

Then, on the ESC tray you have to loosen the foward 2 screws a few turns.

I have a XL-5 esc. But I dont bother with a LVA or cutoff. With any power system you will notice a sharp drop in power when its time to stop running the lipo pack. So, a low voltage cutoff is safer, but not nessesary.

I use the sky lipo 2s 30c 5000mah packs off hobbypartz, as well as the thunder AC6 charger. Been very happy with them.

Would I need to Modify the chassis in order for the wires to exit the batteries properly? I know some of them exit directly from the side of the pack.

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Old 05-02-2012, 08:18 AM
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Default RE: LiPo Question

ORIGINAL: jkinosh


ORIGINAL: nitrosportsandrunner

I have an ecx torment that I have been running since day 1 on 2s lipo packs.

while a hardcase is sturdier, softcased packs are fine.

I had a 3s softcase that flew out of a car going 50+mph (forgot to but battery bar on) and the pack flew across pavement tumbling several times. it was fine, still use it today.

Also, on the torment you will need to do some small mods for a 2s 5000mah pack (soft or hardcase) to fit.

those twist locks need to be raised up. unscrew them (from underside) and then place a couple small washers between the chassis and twist locks.

Then, on the ESC tray you have to loosen the foward 2 screws a few turns.

I have a XL-5 esc. But I dont bother with a LVA or cutoff. With any power system you will notice a sharp drop in power when its time to stop running the lipo pack. So, a low voltage cutoff is safer, but not nessesary.

I use the sky lipo 2s 30c 5000mah packs off hobbypartz, as well as the thunder AC6 charger. Been very happy with them.

Would I need to Modify the chassis in order for the wires to exit the batteries properly? I know some of them exit directly from the side of the pack.

yea if the tubs like that
Personally I use http://hobbyking.com/hobbyking/store...dProduct=14976 in ones like that too bad they are -2 in stock(back ordered)
I use that battery in my tamiyas, my jammin .5 crt, and my axial. They are almost perfectly the same size as a NiMh pack.

I also use http://hobbyking.com/hobbyking/store...dProduct=14991 but they are like a cm longer, and thicker than a NiMh and those wires are THICK, and a royal PITA to solder.
Old 05-02-2012, 08:37 AM
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Default RE: LiPo Question


ORIGINAL: jkinosh


ORIGINAL: nitrosportsandrunner

I have an ecx torment that I have been running since day 1 on 2s lipo packs.

while a hardcase is sturdier, softcased packs are fine.

I had a 3s softcase that flew out of a car going 50+mph (forgot to but battery bar on) and the pack flew across pavement tumbling several times. it was fine, still use it today.

Also, on the torment you will need to do some small mods for a 2s 5000mah pack (soft or hardcase) to fit.

those twist locks need to be raised up. unscrew them (from underside) and then place a couple small washers between the chassis and twist locks.

Then, on the ESC tray you have to loosen the foward 2 screws a few turns.

I have a XL-5 esc. But I dont bother with a LVA or cutoff. With any power system you will notice a sharp drop in power when its time to stop running the lipo pack. So, a low voltage cutoff is safer, but not nessesary.

I use the sky lipo 2s 30c 5000mah packs off hobbypartz, as well as the thunder AC6 charger. Been very happy with them.

Would I need to Modify the chassis in order for the wires to exit the batteries properly? I know some of them exit directly from the side of the pack.

no, the tub is pretty low...and its a bit wider than most 2s 5000mah packs.
I have a "corner side" exit sky lipo 2s 5000mah pack that fits fine (again, with spacers under the thumb screws to raise them a tad)
But there are many inexpensive 2s 5000mah hardcased packs that have the wires come out the top, like the sky lipo 2s 30c 5000mah (black and green) pack on hobbyparts. @ $26 you can buy 2 for under $55 shipped. These fit good and you wont have to worry about the wires or anything.

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