After recently picking up a used 380EX off Craigslist, My new set of standard Duracells did not take very long before the recovery time was getting excessive.
During a big family gathering today, I missed a few good shots waiting for the flash to recharge. It was getting up around 15 seconds, and the batteries have only been in there for a few days and maybe a hundred pictures or so.
So I have spent a few hours in here, searching, reading posts about batteries and studying what all of you have found.
Based on what I read here, I decided to go buy a set of Duracell rechargeable 2000mah precharged NiMH batteries.
I plugged them in tonight and all I can say is WOW!!! What a difference.
I got a timer out and ran a test on full power. With a fresh set of Duracell alkaline batteries, it took about 5.9 seconds to recycle. I pulled those out and tried my new Duracell rechargeables. Under exactly the same conditions, the recovery time was about 4.3 seconds, or about one and a half seconds less. I'm impressed!
It was really hard to resist my own feelings and get the older style 2690 mah rechargeables as opposed to the 2000 mah ones I bought, but I listened to you guys and did what was recommended.
What puzzles me is that these batteries are only 1.2 volts instead of 1.5 to 1.6 the standard Duracells are.
Just thought I would share my findings and verify that the tests done here by others are very accurate.