Wiring lithium polymer (LiPo) batteries

Moderator:Moderators

User avatar
Basement_Modder
Portablizer
Posts:962
Joined:Sun Aug 24, 2008 7:16 am
Location:Next door to my neighbor
Contact:
Re: Wiring lithium polymer (LiPo) batteries

Post by Basement_Modder » Thu Jun 04, 2009 5:48 pm

So, while its on, you will need both plugged in to play and charge?

Are they possible to combine?
Cheers,
Basement_Modder
_________________

User avatar
ShockSlayer
Niblet 64
Posts:5059
Joined:Thu Jun 29, 2006 12:47 pm
Location:In my inbox.

Re: Wiring lithium polymer (LiPo) batteries

Post by ShockSlayer » Thu Jun 04, 2009 6:35 pm

2 things would be required:

1. a charging circuit connected to the batteries that splits the voltage, half going to the battery pack, and the other half to the system
2. a charger that can supply enough current for both.

Someone would have to design a specific circuit for that, and that would be expensive/not something the average portablizer would implement.

SS
http://twitter.com/ShockSlayer" onclick="window.open(this.href);return false;

User avatar
wajimba
Posts:46
Joined:Tue Feb 17, 2009 4:31 pm
Contact:

Re: Wiring lithium polymer (LiPo) batteries

Post by wajimba » Fri Jun 05, 2009 3:39 pm

But it would be possible to charge and play off of wall power at the same time using two separate adapters?

Code: Select all

$> man woman
$> Segmentation fault (core dumped)
[/color]

User avatar
wajimba
Posts:46
Joined:Tue Feb 17, 2009 4:31 pm
Contact:

Re: Wiring lithium polymer (LiPo) batteries

Post by wajimba » Fri Jun 05, 2009 3:47 pm

Here's another one: Would it work to use a 7V wall power adapter instead of a 7.2V one?

Code: Select all

$> man woman
$> Segmentation fault (core dumped)
[/color]

User avatar
eurddrue
Senior Member
Posts:2367
Joined:Fri Jul 18, 2008 1:26 pm
Location:I am so caught up in real life I have to be done for a while. I'll still check in but dontexpectmuch
Contact:

Re: Wiring lithium polymer (LiPo) batteries

Post by eurddrue » Fri Jun 05, 2009 4:36 pm

wajimba wrote:Here's another one: Would it work to use a 7V wall power adapter instead of a 7.2V one?
It depends on what you're powering. If the power goes into a 7805 linear voltage regulator then 7v would be fine. If it is something that specifically goes straight into the board, you might still be fine, all that would happen would be that the system/circuit wouldn't turn on, no damage would be done.
Banned indefinitely if you desperately need to contact me STOPPHONESPAMPLOX Please dont be a dick and call for something random like "HEY YURDRUE DOO U HAZ SPAM?"
wallydawg wrote:
chainfire95 wrote:220V I believe
I think we should check to see if you can withstand 220 volts

gamemasterful
Posts:78
Joined:Sun Oct 11, 2009 1:39 am

Re: Wiring lithium polymer (LiPo) batteries

Post by gamemasterful » Sun Oct 11, 2009 11:08 am

Question. I happen to have stumbled upon some CHEAP Li-ion batteries at Goodwill and picked up two. They are each rated 7.4V 2000mAh (LISG160, offbrand battery for Samsung Camcorders if you're interested). I plan on using a 7805 regulator, I'm also using the Retroduo)

If I buy the charger that is typically supposed to charge one of these babies at a time, will it charge them both without a hitch if they are in parallel, or will I just cause something to explode?

(Edited since I found some of my answers)

agentwd40
Posts:19
Joined:Fri May 20, 2011 3:13 pm

Re: Wiring lithium polymer (LiPo) batteries

Post by agentwd40 » Wed Jun 08, 2011 1:34 pm

Mega bump, but I have a question. Don't you need to have a -7.4 charge going to the system as well?

Haunted360
Posts:1000
Joined:Sat Jan 30, 2010 12:22 am
PSN Username:Haunted360
360 GamerTag:Haunted 360
Location:Australia
Contact:

Re: Wiring lithium polymer (LiPo) batteries

Post by Haunted360 » Wed Jun 08, 2011 6:53 pm

With my topic, reckon any of you could help me there?

I got the protection circuit (honk kong lol) and the battery and the charger.

http://forums.benheck.com/viewtopic.php?f=9&t=42893


Thanks

Haunted360
Posts:1000
Joined:Sat Jan 30, 2010 12:22 am
PSN Username:Haunted360
360 GamerTag:Haunted 360
Location:Australia
Contact:

Re: Wiring lithium polymer (LiPo) batteries

Post by Haunted360 » Wed Jun 08, 2011 6:54 pm

agentwd40 wrote:Mega bump, but I have a question. Don't you need to have a -7.4 charge going to the system as well?
Why would you have a negative charge when you need a positive to charge the battery?

Are you confused with Ground??

agentwd40
Posts:19
Joined:Fri May 20, 2011 3:13 pm

Re: Wiring lithium polymer (LiPo) batteries

Post by agentwd40 » Fri Jun 10, 2011 7:51 pm

probably... I just noticed my gamecube had two power pins and assumed I needed positive and negative. So it one of them a ground pin then?

EDIT: This is what I was talking about... this chart says I need a negativly charged wire feeding next to the positive one: http://forums.benheck.com/viewtopic.php?f=41&t=32713" onclick="window.open(this.href);return false;

Post Reply