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Electronics => Projects, Designs, and Technical Stuff => Topic started by: maxpayne on December 11, 2016, 05:07:18 pm

Title: Charger with booster not working
Post by: maxpayne on December 11, 2016, 05:07:18 pm

When I power this circuit via CN1 and no battery present at J3, I am getting only 1.10V at VBAT. When a discharged battery is present, the scenario still remains same. Is there anything I am missing in the design ?

Title: Re: Charger with booster not working
Post by: bktemp on December 11, 2016, 05:52:17 pm

Most lithium chargers start charging when they detect a battery. If there is no voltage at the output, they shut down.
What happens if you connect a battery supplying at least 3V to J3?

Title: Re: Charger with booster not working
Post by: maxpayne on December 11, 2016, 06:25:22 pm

Its running ok then.

I have put this one powered via microusb ans battery plugged in and will run for 5/6 hours and see if the bat terminal voltage decrease.