Regarding Battery charger IC

[shreya shah]

Hello team,
I have 9.0V ,7.8AH ,3S3P Lion rechargeable battery. Please suggest me suitable battery charger IC or battery charge scheme without IC.

 

[Alec_t]

Li-ion cells have a nominal voltage of 3.7V, so a 3S3P battery should provide a nominal 3 x 3.7V = 11.1V. Are you sure of your battery's voltage and chemistry?

 

[Bluejets]

Maybe it's similar to this.........in which case, plenty of smart r/c battery chargers will work.
Some, say around $50 mark are "combination" style and not necessarily suited to LiFe and LiPo.
More expensive units have these battery type as individual selections in the charger menu.
HTRC are just one of many, ranging from $70 odd up to maybe $160.

 

[Audioguru]

The battery shown is labelled ":LiFe" which has a lower voltage than LiIon.

 

[shreya shah]

Li-ion cells have a nominal voltage of 3.7V, so a 3S3P battery should provide a nominal 3 x 3.7V = 11.1V. Are you sure of your battery's voltage and chemistry?

Li-ion cell with 3.0 V is also came. Thanks for your reply i am currently working on charging section of battery if possible pls help to choose IC or power management system .

 

[shreya shah]

Maybe it's similar to this.........in which case, plenty of smart r/c battery chargers will work.
Some, say around $50 mark are "combination" style and not necessarily suited to LiFe and LiPo.
More expensive units have these battery type as individual selections in the charger menu.
HTRC are just one of many, ranging from $70 odd up to maybe $160.

View attachment 52967

Thank you for your reply my project requirement is LION 9.0V,7.8AH rechargeable battery

 

[Harald Kapp]

As others have stated, getting 9 V from LiIon cells is not possible (at least not directly) as the cell voltage is ~3.7 V. Show us the specifications (datasheet, photo) of your battery, please.

 

[Alec_t]

Li-ion cell with 3.0 V is also came.

Aren't the 3V cells Lithium Manganese Dioxide?
You need to be sure of the chemistry. If you don't charge Lithium-based cells correctly you are likely to have a fire or explosion.

 

[Audioguru]

Aren't the 3V cells Lithium Manganese Dioxide?
You need to be sure of the chemistry. If you don't charge Lithium-based cells correctly you are likely to have a fire or explosion.

Little 3V lithium coin cell batteries like CR2032 use Lithium Manganese Dioxide. They are not rechargeable.