Stuman74 Yes NiMH cells are 1.2volts or two are 2.4V Li-ion 2 cells are 3.7VDC and the camera cuts off when Li-ion cells [or any cells] get slightly below 3.0 volts. So even if NiMH are larger Milli. Amp capacity the voltage is lower and the camera will shut off mid way through its capacity due to low voltage. Normally CR-V3 is a disposable non rechargeable Lithium battery Recently several mfgs. have produced rechargeable CR-V3. The Rechargeable CR-V3 I have is labeled by Targus and is a TGB-CRV3 showing Li-ion 3.0 V 1700Ma. This Targus is not exactly like the KLIC-8000 terminal wise but works ok, but will not charge in the HD dock, in the camera, or on the Kodak Charger. I found a way around while charging in the Kodak charger. OEM charger equivalent to the Kodak for Li-ion rechargeables are avail at the above vendors I mention and all over the net for $14-$19.95 verses Kodak $34.95 and $39.95 if you want foreign adapter kit. Most come with a cigar automotive 12VDC power cord for charging mobile also.