Welcome to Rock Crawlers Of ATL. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.


Join our community!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
I need some help guys.
Topic Started: May 18 2008, 07:45 AM (173 Views)
crawler374
Member Avatar
100% Rock Crawler
[ *  *  *  *  *  *  *  *  *  * ]
Im VERY skepticle about Lipoly battery. I've watched and read tons of reviews and I can see the capability of them destroying your truck, even your house.

I have heard that each cell is 3.7v. is this correct?

I have also read that Lipoly's require to be balanced every few charges?

Since im on somewhat of a budget, i've come across this website called HobbyCity. They have alot of lipoly accesories and choices. I have picked out a few reasonable things for me to get.

Looking at the voltage, this battery pack seemed decent, especially for the price.

http://www.hobbycity.com/hobbycity/store/u...idProduct=6452#

Spec.
Rated Capacity: 4000mAh
Voltage: 7.4v
Rated Discharge: 17-23C
Weight: 198g (with wires & connectors)
Size: 135x43x18mm


Is that battery a decent one? Maybe even a "good" one?


Now, thats the easy part i rekon. Now I have been searching for a charger, and HobbyCity had them. Searching and spending 2 hours reading reviews, this charger seemed to be decent for the price.

http://www.hobbycity.com/hobbycity/store/u...?idProduct=3824

Spec
Balance Charge 2-4 Cells Lipo
Manual and Auto select charge current.
Auto-detect battery type.
Identify bad battery
Series Charging for Ni-MH
Excellent display and menu system
Alarm and safety cutoff
Battery Repair function
Charge Rate Max: 1100mAh


Do you guys think this charger is a good one? I'v noticed that almost all of you run Lipoly battery's. Thanks alot for any help.







I don't have ADHD, I just.... OMG A WAFFLE!
Offline Profile Quote Post Goto Top
 
TheROOSTER
Member Avatar
100% Rock Crawler
[ *  *  *  *  *  *  *  *  *  * ]
That battery looks decent but, it is long and would be hard to find a place to mount it on a truck. I would go with a 1500-2000 mah battery since they are smaller. The run times are still long too. My 1500 Lipo's last about 30-45 mnutes almost twice what my 2/3a NiMH's last.

The charger is good except for the 1100mah max charge rate. At that rate it would take almost 4 hours to charge the 4000 mah battery you are considering.

HobbyCity it great to deal with but expect to wait a little longer for a shipment. They are located somewhere overseas, I think Hong Kong.

3.7v per cell is correct and they do need to be balanced.
Offline Profile Quote Post Goto Top
 
crawler374
Member Avatar
100% Rock Crawler
[ *  *  *  *  *  *  *  *  *  * ]
1st off, thanks alot for the info!


What do you think about this battery?

http://www.bidproduct.com/part/Product_vie...BATTERY_34.html

And this charger?

http://www.hobbycity.com/hobbycity/store/u...?idProduct=5549
I don't have ADHD, I just.... OMG A WAFFLE!
Offline Profile Quote Post Goto Top
 
TLTRyan
Member Avatar
100% Rock Crawler
[ *  *  *  *  *  *  *  *  *  * ]
crawler374
May 18 2008, 10:33 AM
1st off, thanks alot for the info!


What do you think about this battery?

http://www.bidproduct.com/part/Product_vie...BATTERY_34.html

And this charger?

http://www.hobbycity.com/hobbycity/store/u...?idProduct=5549

For a crawler the battery should be fine.

The specs on the charger look good also.

If you are worried about charging them get a Lipo Sack. I don't use one but it is on my list of things to buy.

I would also read this.http://z7.invisionfree.com/Rock_Crawlers_o...p?showtopic=109
If you are trying to pull more amps than the battery can handle it will have a very short life.
Offline Profile Quote Post Goto Top
 
JasonTville
Stone Slider
[ *  *  * ]
I am SUPER new to Crawling but I use a 3300 Mah battery and I get at least an hour of run time out of it. I did have LI-PO for my RC18 but it got very hot when charging sometimes and made me a nervous wreck.


Here is a set up I made..

Posted Image
Offline Profile Quote Post Goto Top
 
Colby
Member Avatar
Pants on the ground
[ *  *  *  *  *  *  *  *  *  * ]
Yea I wouldn't be able to leave the battery while its charging. Wouldnt want it to blow my house up... Destroyer showed me a video of a lipo exploading and yeah that pretty much made me say im sticking to regular batteries
ScaleReady Chassis Fab
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
« Previous Topic · CRAWLER TECH · Next Topic »
Add Reply

Theme by Sith of themeszetaboards.com