(04-05-2013, 09:20 PM)aehjr Wrote:(04-04-2013, 09:33 AM)Cobra4x4 Wrote: If going with rechargable batteries ... make sure they are Nickel–metal hydride as they hold their charge longer and can be recharged many more times.
Absolutely stay away from Ni-Cad batteries.
I'd go with NiMH over the lithium. If I understand the data sheets, NiMH and Lithium batteires have the same capacity and you can recharge NiMH.
NiMH batteries have much more capacity than regular AAA batteries. Based on the cost of the batteries, they pay for themselves once you have recharged them two or three times. I use Rayovac Hybrids for all my AA and AAA batteries and am very satisfied with the results. They also have long shelf life and capacity for many recharges. Ni-Cads have very short shelf life; they self discharge very quickly.
I tried three different brands of NIMH rechargeable batteries (duracell, maxell and sunbeam) but the oximeter will not turn on. CMS 50 D+ has voltage rating of 2.6~3.6v. NiMh are 1.2v and two of them can make upto
2.4v. Regular non rechargeable batteries work fine because they are 1.5v. Any suggestion on rechargeable batteries for this oximeter?