Batteries
Reviews, capacity tests.
Capacity Test of Popular NiMH AAA Rechargeable Batteries
There is very little independent data on the discharge capacities of popular AAA NiMH batteries. Most of the attention has focused on the AA size batteries. Yet, AAA size batteries power an ever-growing list of gadgets that include not only cameras but MP3 players, Bluetooth headsets, cordless phones, remote controls, etc.
Capacity Test of PowerEx 2700 NiMH Batteries
In the quest for the perfect power source for my Canon Speedlite 580EX, I purchased a new set of Maha PowerEx 2700 NiMH rechargeable batteries from EastGear here in Singapore. Then, I measured their discharge capacity using a LaCrosse AlphaPower BC-900 charger. (See my earlier post for tips on using this excellent charger/tester effectively.)
Tips for using the La Crosse AlphaPower BC-900 Charger
The La Crosse AlphaPower BC-900 Battery Charger has been getting rave reviews from users. The term ‘charger’ is a bit of a misnomer. That’s because it’s not only a battery charger but also a battery tester and battery refresher. It has four modes: charge mode - slow or fast charging with selectable current; discharge mode [...]
Capacity Test of Eneloop NiMH Batteries
Photographers have learned that rechargeable NiMH batteries are the best choice to power an external flash. Charging the primary set of batteries prior to a ’shoot’ is not a problem. However, there is rarely enough time to charge the back-up sets which can sit in a camera bag for weeks or months. This can be [...]
Capacity Test of PowerEx 2500 NiMH Batteries
Robert has read claims that PowerEx 2500 AA NiMH rechargeable batteries are conservatively rated or under-rated with respect to their nominal capacity. These batteries are being advertized as the best in their class. Marketing phrases such as “ultra high performance” and “true capacity plus” are being used by distributors and dealers. On Maha’s website, they [...]
