Lithium Battery Better To Discharge Or Keep Charged

Where to start? This battery is both durable in it's construction as well as usability in that it can be stacked to add amperage to a battery powered source that requires more than a typical 94wh load, this is genius. The fact that it trickles discharge from the exterior batteries inward means you can hot swap peel away the end battery off your camera/light/whatever-you're-powering while leaving a charged battery on board and add a fully charged pag to the back. This means never having to power down as long as you have 3-4 of these babies charged up. Speaking of charging, they stack and trickle charge as well! 4 Pags per AB charging plate. This saves you space, money and time as well as weight with less chargers needed in your flight case. The exterior power gauge is helpful showing you a rough percentage of remaining battery in numeric form rather than some of the other cyptic icon systems (speaking to everyone, looking at Anton Bauer). I can't speak to the life time of the battery, but it's been plugging away giving ample charge and discharge cycles for the better part of a year with no noticeable memory loss. Do yourself a favor and stop buying cheap batteries and get some PAGs. It'll be hard to go back to non-stackable battery systems after you have a chance to work with these PAGs...

If you use rechargeable batteries, this is a must. I love that each battery is charged on it's own circuit so the all gat fully charged, and not just charged until the first one is full. The Discharge feature is also great, and valuable to refresh batteries.

This lithium battery is very reliable.

At begining I was afraid because It didnt turn on, but It was because was discharge. I charged for one hour and it goes perfect

I have only used this for one cycle yet, but it was not nearly done by the end of my shoot. It charged up in about the time it had taken to discharge. Cons are that the Sony batteries are quite expensive and fairly heavy, but I suppose the latter aspect is one you can't just wish away. I have on BP-U30 as well. I have not read the specs, but I think this is essentially twice the capacity with a fairly linear trade-off in cost and weight. I'd recommend it for people who might not be able to get through on a BP-U30's endurance and they wanted to carry as few batteries as possible. For extensive shooting, one might consider one of each, in this manner: 1. shoot on U30 and drain it. 2. swap to U60 as U30 charges 3. U30 should be fully charged by time U60 is drained.

That's the only choice to go for AA Lithium. Keep charge long time, and keep up with the seldom 'burst' needed in flash.

This just seems like the way to go! Keep one on back up always charged and change out when needing to. When you have one in rotation you can always have power at your fingertips!

Works great, the discharge function should improve battery life.

ordered this battery, it came already charged!

I only charged the battery once, but seemed to have no problems.