Hello guys,

I am hoping that someone could help with suggestions regarding a cost effective batter charger IC that could be used to efficiently charge two 3.7V, 2500mAh battery (Lithium-Ion or Lithium-Polymer or other chemistry) connected in parallel totalling 5000mAh. The maximum charge time for the 2 batteries should ideally be up to 4hrs, preferably less than 3hrs. The charger IC should feature protections etc. The 2 batteries are expected to be charged via a standard USB.

Thank you

 

Adafruit USB-Battery-Charger
DigiKey - 1528-1996-ND
~$12.50
.
.
.

 

Adafruit USB-Battery-Charger
DigiKey - 1528-1996-ND
~$12.50
.
.
.

Thank you for your comment. I am referring to a battery charger Integrated Circuit that be added on a custom PCB layout design. Not already made product, just the battery charger IC. For example MCP73842 IC. Battery charger ICs that are less than £1.50. Thanks

 

The Injoinic IP2312 is a good option. You can get it from LCSC which is connect with JLCPCB. Unfortunately, the data sheet on that page is in Chinese (though Injoinic does have perfectly good English data sheets). A quick search failed to turn up the English version, but here's data from EasyEDA which is JLCPCBs online CAD offering:

​

 

You can take a look at Texas instruments BQ series: https://www.ti.com/power-management/battery-management/charger-ics/products.html#1152=2;5&

TI has included these in thier 2 to 5 cells battery charger list.