Portable Charger??????

[brandall937]

I'm looking at making a portable charger with either Li-po or 18650's ..... I know how to set them all up in series and paralell as well as the charger.

Just curious on how to get it to safely send the power out?

Also do i need to Set up Pcb on each set of paralells or fuses in between the cells?

Basically Im trying to make something around 10 to 20 Amp hrs, something I could use to recharge my batteries and cell phone for a good bit.

Lastly, would making seperate chargers for each set of cells make charging easier or would one charger be best for them all??

Any help is greatly appreciated.

 

[SupplyDaddy]

It would probably be easier on you to just buy a battery backup.. Like these: (2A or higher) (Just FYI on the links)
$15.92 QIDIAN 2A 2*18650 DIY Power Bank Battery Compartment - white / 0.9" LCD screen at FastTech - Worldwide Free Shipping (Just needs the batteries)
$19.71 QIDIAN 4A 6*18650 DIY Power Bank Battery Compartment - dual USB output at FastTech - Worldwide Free Shipping (Just needs the batteries)
$37.16 Coolook PB-2000 2A 4*18650 Dual USB Output Mobile Power Pack Battery Charger at FastTech - Worldwide Free Shipping (Ready to use)

There are THousands of battery backups out there.. No need to reinvent the wheel!

 

[brandall937]

Yah I wa thinking that route but I was just looking at a bigger storage option cause even with the 6 18650 its only like 12-15k mah.....Thanks Ill keep looking see if I can find one to gut ha

 

[SupplyDaddy]

If you need something bigger, you don't need a "Portable battery backup".. because it won't be..
Find yourself a UPS.. LOL

 

[brandall937]

True but I was kinda looking for something to put in this..... My tablet has around a 7000mah battery so that nearly kills all the smaller ones by the time its 100%.... Amazon.com: Solo Storm Collection Universal 10-Inch Tablet Sling (STM751-4): Computers & Accessories

 

[brandall937]

Couldn't I use the Guts from one of those chargers and just hook them up to a couple of these bad boys or is 1c not a high enough power for them still learning about li-pos http://www.all-battery.com/polymerli-ionbattery37v10000mah30104.aspx