Robert’s Photography Blog

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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 [...]

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.

In an earlier post, Robert promised more detailed information on the new Sanyo 2700 rechargeable battery. I considered testing them in a flash unit or digicam. However, such an experiment is too difficult to implement meaningfully. Therefore, I decided to measure the capacity of the batteries in the conventional way. Measuring rechargeable battery capacity is [...]

Any photographer using a Canon Speedlite flash or equivalent knows the importance of battery performance! The Canon EOS 20D is capable of shooting 5 frames/sec for up to 23 consecutive frames! A Canon Speedlite flash with (4) AA alkaline or NiMH rechargeable batteries struggles to keep up. Practically speaking a photographer would rarely if ever [...]