Try http://www.zbattery.com
I purchased four rechargeable C-cell batteries and a multi-battery charger (will charge everything from AAA to D cells and even 9-volts) from them in 2008, plus various AA and AAA batteries. I use the rechargeable C-cells in my belt pack Petzl Duo and I love 'em. ZBattery has a darn good selection and prices. My favorite AA batteries are the 2700 mAh PowerEx batteries. But if you really have a lot of time on your hands to do research, visit the Candle Power Forums where you'll find an amazing amount of information about lights, batteries and all things related. http://www.candlepowerforums.com Diana * * * * * * * * * * * * * * * * * * * * * * * * * * * * Diana R. Tomchick Professor University of Texas Southwestern Medical Center Department of Biophysics 5323 Harry Hines Blvd. Rm. ND10.214B Dallas, TX 75390-8816, U.S.A. Email: diana.tomch...@utsouthwestern.edu 214-645-6383 (phone) 214-645-6353 (fax) On Aug 8, 2012, at 7:58 AM, Geary Schindel wrote: > Bill, > > Have any suggestions on where to buy these on line. Considering the number > of batteries I’ve run through, time to reinvest in rechargeable. > > Geary > > From: Bill Walden [mailto:wdwal...@windstream.net] > Sent: Wednesday, August 08, 2012 11:43 AM > To: Marvin and Lisa; texascavers@texascavers.com > Subject: Re: [Texascavers] Rechargeable Batteries > > I have been using the same set of Energizer 2700 mAHh rechargeable batteries > for at least 4 years for multiple caving trips per month in my Apex headlamps > (at least 4 headlamps over the 4 years - the batteries have outlasted 3 Apex > headlamps). I always charge these batteries the night before a trip because > the charge will decay over time. Over the years the capacity has decreased > from enough to last an 8 to 12 hour cave trip to about 6 hours. My > suggestions: > > Don't consider buying rechargeable batteries at Wal-Mart - most of the > packages of batteries they sell are not labeled with the capacity and if the > package is labeled it is typically a low rating (less than 2000 mAh). > > The Sanyo batteries recommended by Marvin sound good. These batteries > represent a new generation of nickle metal hydride batteries that hold their > charge much better than my old Energizers. > > Don't buy nicad batteries as they have a memory effect. > > Carefully check the milliampere hour rating of the batteries. As mentioned > most rechargeable batteries sold by Wal-Mart are not labelled or the capacity > label is covered by the packaging. I will not purchase rechargeable batteries > with a rating of less than 2500 mAh. The most recent batch of AA batteries I > purchased are rated at 2900 mAh. > > Best to use a slow charger rather than a fast charger. The battery charger I > use is a "smart" charger - that is it senses the charge on each cell. Once a > cell is fully charged, the charger switches to a trickle charge rate (enough > to maintain the battery at full charge). My charger works off a 120 volt wall > outlet or a 12 volt automobile outlet. Charge batteries day before a cave > trip to maximum duration. > > I use the nickel metal hydride AA batteries for my photo equipment: 3 > floodlights each requiring 6 AA batteries, 4 strobe lights each requiring 4 > AA batteries, and 3 high intensity LED flashlights each requiring 2 AA > batteries (With the reflector removed these flashlights are great for macro > photography!). > > Don't waste your money buying alkaline batteries. > > Best regards, > Bill Walden > > > On 8/7/2012 11:11 PM, Marvin and Lisa wrote: > I have heard some good things about Sanyo's Eneloops. They are supposed to > hold their charge for a long time and Sanyo claims they can be recharged 1500 > times. I've started using them but haven't had enough experience to > definitely qualify them. Whatever you do, don't waste money on Energizer or > Duracell rechargeables. > > Marvin > > From: James Jasek [mailto:caver...@hot.rr.com] > Sent: Tuesday, August 07, 2012 7:30 PM > To: TexasCavers > Subject: [Texascavers] Rechargeable Batteries > > I am interested in making the change to rechargeable AA and AAA Batteries for > my cave light and for electronic strobe. Anyone got any opinions on how they > compare to the Alkaline Batteries. Do the new rechargeables have the memory > problems of the past? Do they last as long and preform as well, and what > brand is the best. > > Thanks, > > James Jasek > ________________________________ UT Southwestern Medical Center The future of medicine, today. --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
