I have an interesting design coming up. There are two batteries. An internal LI-ION and an externals LI_ION. Both single cell. The internal battery is charged by the external battery. The problem is that I have had no luck so far finding a LI-ION battery charger IC which can take aprox 2.7V to 4.2V on the input and perform its intended purpose. I certainly can boost the primary battery voltage to what most battery charger IC's require at the input, I would just prefer to not do that with an additonal IC. Anybody know of one out there?
Joined: Thu. Oct 20, 2005
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