The bottom of line Motorola v120c comes standard with a 1100mAh 3.6v Lithium ion battery and the bottom of line Nokia 3390 comes with a 900mAh NiMH battery BMC-3. The Nokia 3390 can take BLC-2 850mAh lithium ion that offers same talk time at twice the cost. I have not found lithium ions to be significantly higher density(Wh/kg) than NiMH and my v120c with significantly more expensive Li-ion doesn't seem to do much better than Nokia 3390 with NiMH. Pros and cons of each chemistry: Lithium ion; Pros: higher energy density than NiMH, very slow self discharge(if you store battery on the shelf charged, it will be fully charged a month later), no memory effect and more techie sounding name. Cons: Much more expensive than NiMH. Due to current inherent limitations of this chemistry, fast charge is not realistic and the last few percent of charge takes hours to charge. NiMH; Pros: much cheaper than Li-ion and it easily accepts fast charge while giving similar talk and standby time as Li-ion Cons: loses a percent or two a day of charge in storage(not that it matters for something like phone that you leave on 24/7), lower energy density than Li-ion In closings, I can't see Li-ion being any superior to NiMH for use in cellphone. I think many would appreciate the faster charging 3390 over a slow charging v120. comments?