Need 14.8V battery charger circuit

[udhay_cit]

Dear friends,

I am using a 4 cell series connected (14.8V) battery pack for my application. The current rating of battery is 1100mAH. Please anyone provide me a charger circuit's. I tried with Google search but i can not able to get a good circuit...
Please help me regarding this... Thanks in advance...

Regards
Udhay

 

[speedEC]

battery chemistry?

 

[udhay_cit]

Sorry... Its Li-Ion battery... Thanks you...

 

[speedEC]

**broken link removed**

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http://www.analog.com/library/analogdialogue/archives/31-2/liion.html

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http://cds.linear.com/docs/en/solutions-manual/BatteryChargerSolutions.pdf

 

[thannara123]

https://www.digikey.com/us/en/techz...-designer-guide-lithium-battery-charging.html

 

[udhay_cit]

Thanks for the solutions. I tried with LTC4006-4. But the circuit is not working...

 

[speedEC]

Sufficient input voltage/amp given? What "C" you set for charging in amps? Output voltage may reach to 16.8v(Max 4.2v/cell x 4 nos).

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Caution: Please handle battery with care.