Aa 1.5V Lithium Batteries 8 Pack

[5.4 x 3 x 1"] Works as intended. Batteries are securely held. 8x AA, 4x AAA, 1x 9v.

[8x AA] The Ultimate Lithium AA last a long time!

[2000 mAh] This Lithium battery pack is one of the smartest things I have ever heard of for batteries. It charges very fast for its size and lasts very long! I would recommend this item to others!

[0.035 lb] This 4-pack of lithium button batteries is a perfect way to get those tuners shining brightly again. B&H gets them to you cheaper than any other option. Trust me -- I'm a smart shopper!

[1x White LED] I bought two flashlights one for home and one for my back pack and they work great. I can't believe you only need two AA batteries to get this much light.

[0.8 lb] Much better than using the AA batteries

[4 x 2 x 1.5"] ...my AA batteries are organized.

[20.0 VDC] This battery pack increased recycling time on my Nikon Flashes, 12 AA batteries provided enough power for a demanding event. It will be more convenient to have a secondary battery tray for faster battery swapping.

[0.17 lb] While probably not durable enough for daily professional use, this is an outstanding product. I use it with a Canon 550EX, and recycle times have gone from from 5-15 seconds with 4 internal AA batteries down to less than one second with the Bolt external pack. Standby power consumption is also reduced. The noise the flash makes while recycling is dramatically reduced. The Bolt also comes with an excellent padded case that can attach to your belt either vertically or horizontally. I'm using Sanyo Eneloop 2000mAh Ni-MH rechargeable batteries. Note: The 550EX requires batteries to be installed inside the flash (in addition to the external pack) to operate the flash's display circuitry and work correctly -- any AA batteries (e.g., alkaline) will do. Wish I had bought one of these years ago!

[Handheld Only] Doesn't do much else but it is great for storing batteries after opening a 12 pack of AA and not wanting to use a tacky zip-lock bag or something.