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can you recharge a 1.2V (1800mAH)battery with 5V? Answered

so i got a rechargable battery 1.2V (1800mAH) i i would like to ask if i can recharge it with 5V ? will it explode? will it glow? 

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Yonatan24

3 years ago

Yes, It will probably explode.

Buy an AA/AAA battery charger

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Onamix-max-

Answer 3 years ago

max!! you are right, i also need this

i have visited the link and found it very helpful

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iceng

3 years ago

If you are a builder, this little IC, watches the battery temperature controls current and uses the 47 microhenery choke to control (lower the voltage) to your battery just increase R7 to 0.2 ohms to lower the current for an 1800mAH or 1.8AH battery...

The DS2712 is a Maxim product

http://pdfserv.maximintegrated.com/en/ds/DS2711-DS...

you should register with them and ask for two free samples as an instructables writer.... Maxim wants to sell ICs so a free article using their DS2712 is in their interest and may sell thousands and thy will happily send you several parts.

USBatteryChg.gif
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rickharris

3 years ago

You MUST have a correct voltage charger not just connect to 5 volts.

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rickharrisrickharris

Answer 3 years ago

The type of battery matters as well - At 1.2 volts I guess Nicad or NiMh so heed the link below.