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Li-Ion Charger Using Max 1555

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samkim1

New Member
Hi Friends,

I am new to this forum, well I am trying to make a Li-Ion charger using Max 1555, has any one tried out doing this, if so please do tell me, I have been unsuccessful many a times doing this experiment. I am enclosing the circuit used for this experiment.I have done all the circuit connections as shown in the diagram but still when the battery has been charged after being discharged till 3.55V, while charging the LED will be in ON state, when it reaches the maximum(4.15V), the LED has to turn off, but in my case it remain to be ON. Could any one know the exact reason behind this.I am using DC input instead of USB for charging.Is it okay with it.Thank You.http://www.sparkfun.com/datasheets/Batteries/max1555_charger_schematic.pdf
 

samkim1

New Member
Any Help

hi friends,

I need help regarding this matter.r any one if they wud hav done the similar kind.Plz help.Thank You.
 

Sceadwian

Banned
What voltage are you feeding the charger?
 

MikeMl

Well-Known Member
Most Helpful Member

Sceadwian

Banned
I am using DC input instead of USB for charging.
Yep, USB is 5 volts.
 

Sceadwian

Banned
sam, we're out of information. Something is either miswired in your setup or faulty.
 
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