Robert’s Photography Blog

Reviews, capacity tests.

Look familiar? Except for the black color, the BC-700 looks exactly the same as the better-known La Crosse BC-900 AlphaPower Battery Charger. Just like the BC-900, the BC-700 has four user-selectable operating modes: Charge, Test, Refresh, and Discharge. Trickle charge kicks in once the batteries are charged.
What’s the difference? The BC-700 charging current maxes [...]

Late last year, Maha Energy - the maker of Powerex batteries and chargers, introduced a low self-discharge rechargeable battery called the ‘IMEDION’. The IMEDION batteries are compatible with NiNH battery chargers and are available in 2100mAh capacity for AA size and 800mAh for AAA.
Maha states that IMEDION batteries retain up to 85% of their charge [...]

While my initial capacity tests of Eneloop batteries were very positive, I chose to power my Speedlite flash and power pack with super high-capacity NiMH batteries such as Powerex 2700 or Sanyo 2500 batteries. After more than a year of field experience with these batteries, I am switching to Eneloop batteries.
So what’s up? The self-discharge [...]

The Maha PowerEx MH-C9000 WizardOne Battery Charger & Analyzer was announced in November of 2006. This device was certainly designed by Maha to compete against the very popular LaCrosse BC-900 AlphaPower Battery Charger/Analyzer. The MH-C9000 is just now shipping to retail stores worldwide. I was able to purchase a unit at EastGear in Singapore. I [...]

European consumer battery maker VARTA, founded in 1904, was acquired by Rayovac (now Spectrum Brands, Inc.) in 2002. Spectrum Brands sells rechargeable NiMH batteries under the Rayovac label in the USA. In Europe and Asia, the Varta brand is still used. I purchased a 4-pack of Varta Power Accu AA 2700 NiMH batteries at [...]