LiPo's and Chargers Demystified - At least for dummies like me....

huang · February 23rd, 2009, 18:32

FYI

Hotpower Over-discharge protetion circuit.

When the battery is lower than the saftey level, it auto disconnects.

F34N0R · February 23rd, 2009, 18:43

where can we get that Huang ?

m102404 · February 23rd, 2009, 18:58

Need 3...

LUTNIT · February 23rd, 2009, 22:52

Well I finally got my balancer to work with my King Arms LiPo battery (it seems either the balancer I got was backwards or the KA balancer plugs are backwards, + and - where swapped.) I plugged the battery in with the voltage protector and bam, it wound the gears backwards. Looks like the King Arms voltage regulator I got was wired so it crosses over. Anti-reversal saved my piston.

I don't understand why so many voltage protection circuits and LiPo batteries have mini connectors, they just act like resistors. I melted mini connectors regularly with large 9.6V and 10.8V packs so I see them as useless for anything but a stock TM gun.

Also I thought the maximum draw of a LiPo pack was the C rating of the pack (mAh divided by 1000) multiplied by the advertised C rating for the pack. So for a 1300mAh 20C pack it would be 1.3x20 so 26A. Its just that I know 20C large packs (6000+ mAh) have a draw rating of over 100A.

Based on this, a higher C rating for a small capacity battery would increase the ROF assuming the wire can handle it. Stock wire is often 18awg and can carry a maximum of 10A of current. I upgraded my EBR to 14awg wire and the ROF jumped since the wire was able to carry 17A. This doesn't really work with TM or other average performance motors but I run Magnums and Turbos and they can draw upwards of 25A from what I have read (assuming the amperage is available and the wire can handle it.) I have some 12awg wire with super thin coating, its as thick as normal 16awg wire but its so stiff it doesn't really work in guns. I have been looking around casually for pure silver wire instead of copper or silver coated copper but I can't find anything. Someone told me silver wire costs $100/foot or something but that doesn't make any sense as thats more expensive than silver jewelry.

13Fido13 · February 24th, 2009, 20:41

I got a chance to shoot tys' guns on sunday and was quite impressed with it. I'll be keeping in touch with both tys and this thread to see what comes of it.

Jugz, I'm thinking a package deal for starters with a battery, protector, and charger would be a good idea. I'd definitely be interested in one of them. Maybe even a second battery with protector as a secondary kit. But that's further into the future.

For now i'm pleased with the life and rof of the standard batteries, and although the trigger response isn't immediate, i've learned to live with it.

Hopefully people don't feel the need for a super high rof gun. But who honestly wants to waste that many bbs.

Fido

huang · February 24th, 2009, 22:48

Quote:

Originally Posted by F34N0R

where can we get that Huang ?

$13 each

jesster202 · February 24th, 2009, 22:49

will thoes hot power ones work with any outher bands or just the hot powers?

huang · February 24th, 2009, 23:09

Quote:

Originally Posted by jesster202

will thoes hot power ones work with any outher bands or just the hot powers?

It works for any 11.1V lipo.

m102404 · February 24th, 2009, 23:14

Huang,

do they have a version for a 7.4v LiPo...or does the one unit work for both 2 and 3 cell lipos?

Tys

LUTNIT · February 24th, 2009, 23:25

It wont work for both, they are designed for 11.1V batteries so they cut off around 9V, 3V per cell. You would need one that cuts off somewhere before 6V for a two cell pack.

huang · February 24th, 2009, 23:37

Quote:

Originally Posted by m102404

Huang,

do they have a version for a 7.4v LiPo...or does the one unit work for both 2 and 3 cell lipos?

Tys

Nope. You need 7.4V over-discharge PCB. I have them too if you need.

jesster202 · February 25th, 2009, 01:51

expect my money soon lol i needed this i was about to order a cell alarm from hobby town but this is much better. are theys reliable?

huang · February 25th, 2009, 01:59

Quote:

Originally Posted by jesster202

expect my money soon lol i needed this i was about to order a cell alarm from hobby town but this is much better. are theys reliable?

Yes, HOTPOWER is ver reliable manufacturer. Custom made lipo is available too.

jesster202 · February 25th, 2009, 02:08

right now im fine with my current packs of firefox i just wnatted to make shure befour my next order that theys are a good brand for the cell moniters/stoppers and that they work with outher brands that are of course 11.1 v lipos

huang · February 25th, 2009, 12:00

Quote:

Originally Posted by jesster202

right now im fine with my current packs of firefox i just wnatted to make shure befour my next order that theys are a good brand for the cell moniters/stoppers and that they work with outher brands that are of course 11.1 v lipos

HOTPOWE's better than firefox ( I carry some fireforx too but I would recommand hotpower )

Home	Forums	Register	Gallery	FAQ	Calendar
Retailers	Community	News/Info	International Retailers	IRC	Today's Posts

British Columbia	Alberta
BCAC	EAR
Op-For	JOC
Northern Arms Airsoft	Skunkworx Airsoft
Airsoft Kelowna	RAAT
Prince George Airsoft	Manitoba
Saskatchewan	MAA
SK Airsoft	Ontario
PDW	Airsoft Ottawa
South Sask Mercs	Snow Dragons
Quebec	1st Ranger Platoon
PQAC	Wolfpack Tactical
1st Pathfinders Regiment	TTAC3
Quebec Airsoft
MTX Airsoft	Atlantic
FAQc	Atlantic Airsoft

February 23rd, 2009, 18:32	#31
huang Trader rating Join Date: Dec 2001 Location: Scarborough	FYI Hotpower Over-discharge protetion circuit. When the battery is lower than the saftey level, it auto disconnects. Last edited by huang; February 23rd, 2009 at 18:35..

February 23rd, 2009, 18:43	#32
F34N0R Trader rating Join Date: Jun 2003 Location: Saint-Georges, QC	where can we get that Huang ? __________________ WAR-THUG CORP.

February 23rd, 2009, 22:52	#34
LUTNIT Trader rating Join Date: Dec 2005 Location: Ottawa	Well I finally got my balancer to work with my King Arms LiPo battery (it seems either the balancer I got was backwards or the KA balancer plugs are backwards, + and - where swapped.) I plugged the battery in with the voltage protector and bam, it wound the gears backwards. Looks like the King Arms voltage regulator I got was wired so it crosses over. Anti-reversal saved my piston. I don't understand why so many voltage protection circuits and LiPo batteries have mini connectors, they just act like resistors. I melted mini connectors regularly with large 9.6V and 10.8V packs so I see them as useless for anything but a stock TM gun. Also I thought the maximum draw of a LiPo pack was the C rating of the pack (mAh divided by 1000) multiplied by the advertised C rating for the pack. So for a 1300mAh 20C pack it would be 1.3x20 so 26A. Its just that I know 20C large packs (6000+ mAh) have a draw rating of over 100A. Based on this, a higher C rating for a small capacity battery would increase the ROF assuming the wire can handle it. Stock wire is often 18awg and can carry a maximum of 10A of current. I upgraded my EBR to 14awg wire and the ROF jumped since the wire was able to carry 17A. This doesn't really work with TM or other average performance motors but I run Magnums and Turbos and they can draw upwards of 25A from what I have read (assuming the amperage is available and the wire can handle it.) I have some 12awg wire with super thin coating, its as thick as normal 16awg wire but its so stiff it doesn't really work in guns. I have been looking around casually for pure silver wire instead of copper or silver coated copper but I can't find anything. Someone told me silver wire costs $100/foot or something but that doesn't make any sense as thats more expensive than silver jewelry. Last edited by LUTNIT; February 23rd, 2009 at 23:04..

February 23rd, 2009, 18:58	#33
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	Need 3...

February 24th, 2009, 20:41	#35
13Fido13 Trader rating Join Date: Mar 2007 Location: Sudbury, Ontario	I got a chance to shoot tys' guns on sunday and was quite impressed with it. I'll be keeping in touch with both tys and this thread to see what comes of it. Jugz, I'm thinking a package deal for starters with a battery, protector, and charger would be a good idea. I'd definitely be interested in one of them. Maybe even a second battery with protector as a secondary kit. But that's further into the future. For now i'm pleased with the life and rof of the standard batteries, and although the trigger response isn't immediate, i've learned to live with it. Hopefully people don't feel the need for a super high rof gun. But who honestly wants to waste that many bbs. Fido __________________ Level 2 BA Certified

February 24th, 2009, 22:49	#37
jesster202 Trader rating Join Date: Dec 2007 Location: London Ontario	will thoes hot power ones work with any outher bands or just the hot powers? __________________ *MY COLLECTION* *AEG* M4 coustom full metal with king arms metal body //\\ Galaxy MP5 PDW *GAS/SPRING* KJW M9 FULLY UPGRADED //\\KWA FULL SIZE USP //\\ TF MAC11 *GEAR* Coyote Brown CIRAS

February 24th, 2009, 23:14	#39
m102404 Tys Trader rating Join Date: Apr 2006 Location: Toronto	Huang, do they have a version for a 7.4v LiPo...or does the one unit work for both 2 and 3 cell lipos? Tys

February 24th, 2009, 23:25	#40
LUTNIT Trader rating Join Date: Dec 2005 Location: Ottawa	It wont work for both, they are designed for 11.1V batteries so they cut off around 9V, 3V per cell. You would need one that cuts off somewhere before 6V for a two cell pack.

February 25th, 2009, 01:51	#42
jesster202 Trader rating Join Date: Dec 2007 Location: London Ontario	expect my money soon lol i needed this i was about to order a cell alarm from hobby town but this is much better. are theys reliable? __________________ *MY COLLECTION* *AEG* M4 coustom full metal with king arms metal body //\\ Galaxy MP5 PDW *GAS/SPRING* KJW M9 FULLY UPGRADED //\\KWA FULL SIZE USP //\\ TF MAC11 *GEAR* Coyote Brown CIRAS

February 25th, 2009, 02:08	#44
jesster202 Trader rating Join Date: Dec 2007 Location: London Ontario	right now im fine with my current packs of firefox i just wnatted to make shure befour my next order that theys are a good brand for the cell moniters/stoppers and that they work with outher brands that are of course 11.1 v lipos __________________ *MY COLLECTION* *AEG* M4 coustom full metal with king arms metal body //\\ Galaxy MP5 PDW *GAS/SPRING* KJW M9 FULLY UPGRADED //\\KWA FULL SIZE USP //\\ TF MAC11 *GEAR* Coyote Brown CIRAS

LiPo's and Chargers Demystified - At least for dummies like me....

Upgrades & Modifications