Just as a test I've got a couple of AAA non-rechargeable batteries in my GPS and when compared to the life of rechargeable ones they appear to be lasting for absolutely ages....
Any techies got an explanation?
Yeah, primary cells ie non-rechargeable ones hold more charge than secondary, rechargeable ones. Nicads typically store 1/3-1/2 as much as an alkaline, nimh store 1/2-2/3 as much as alkaline. Lithium cells store is the best rechargeable technology but they still can't match alkalines. They also have the drawback that they're best with low current drains eg clocks, smoke alarms rather than high drains like gpses and torches.
The discharge characteristics of batteries depends a lot on the load too. You should be able to download datasheets for your rechargeable cells and compare them to the alkaline datasheets you can download from http://www.duracell.com/oem
Hope this helps
Chris -- Chris Eilbeck [email hidden] MARS Flight Crew http://www.mars.org.uk/ UKRA #1108 Level 2 UYB Tripoli UK Member #9527 LSMR
"Chris Eilbeck" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Quoted post said:
Just as a test I've got a couple of AAA non-rechargeable batteries in my GPS and when compared to the life of rechargeable ones they appear to be lasting for absolutely ages....
Any techies got an explanation?
Yeah, primary cells ie non-rechargeable ones hold more charge than secondary, rechargeable ones. Nicads typically store 1/3-1/2 as much as an alkaline, nimh store 1/2-2/3 as much as alkaline. Lithium cells store is the best rechargeable technology but they still can't match alkalines. They also have the drawback that they're best with low current drains eg clocks, smoke alarms rather than high drains like gpses and torches.
Mike Brock adds:
I've had four Duracell Pile Alkaline AA rechargeable batteries since I bought my digi camera (Sony Cybershot 3.2) 3 years ago. I must have taken over 20,000 pictures using the 4 batteries (alternated and recharged) and they are still going strong. I'm very impressed as I'm sure I'd have gone through loads of non-rechargeables on the use they have had. Not tried them in my GPS as I stick to conventional non-rechargeables (Garmin Etrex Summit). Would they work in the GPS as well as they do in the Camera?
