How can i charge Li-Ion battery's

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  #1  
Old 11-02-14, 12:57 PM
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Location: Germany
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Question How can i charge Li-Ion battery's

Hello
I have An Problem With My Project i want to build an Portable Phone Charger.What I Have:
6x Li-Ion 1,8 Volt
2x 3,7 Volt Li-Ion
So where i get stuck is How do i charge those batterys .....
How i charge the phone that i already know it
Best is if its DIY
 
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  #2  
Old 11-02-14, 01:06 PM
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Welcome to the forums! First, you are located in Germany, and not in Delaware. Second, why not pop for a manufactured charger? Already made, inexpensive, and no hassle. The batteries you have most likely aren't compatible with any phone I know of. You didn't mention the phone you would be charging. Some things are great DIY projects. Some, like this one, are not.
 
  #3  
Old 11-02-14, 02:42 PM
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Although they are most everywhere in great quantities, cell phone batteries, being Li polymer are some of the most difficult cells to charge. They have a data port telling the phone the state of charge of the cell. The charger itself uses a carefully controlled constant voltage, but Li polymer, being somewhat intolerant of overcharging, demand careful full charge attention.
 
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