K&F Concept Sony NP-F550 accu, 2600 mAh

works as described

baterías que cumplen con lo prometido, duración estándar, de una hora y media, dos horas aprox, ligeras, lo cual se agradece cuando se monta en una rig o gimbal, y muy resistentes, no se sobrecalientan.

My intention is to use the K&F Concept NP-F550 Battery and Charger Kit to provide a higher capacity battery for my camera monitor, without adding any noticeable weight increase to the whole package.But, for fun, I connected both batteries to one of my 45w LED panel lights, and ran it at 30% output to see how long these small batteries might last, slightly under 2 hours later, I found out!The batteries were slightly warm from that load, but charged up normally afterward, so no damage done. They should run my monitor for over 2 hours continuous, so the pair, with the original battery, should set me up for my next weekend away with camera quite nicely.The charger unit doesn't show the state of charge of the batteries, showing a red LED when charging, changing to a green one when charging is complete. It is not a particularly fast charger, so several hours are needed to go from exhausted to full.No complaints from me, they will power my monitor beautifully, and I know I can drive a LED panel, at a push, if needed.

Great Batteries For My Ninja Monitor!

I have a small collection of NPF batteries and chargers, Some are from unknown brands and some are from branded suppliers, like these ones. For expensive equipment I tend to only trust the branded batteries as I know people who have had major issues in the past with battery issues.K&F is a brand I trust as I've used their stands and filters for years.These batteries perform exactly as expected and the charger works fine. It charges no faster or slower than my existing chargers, but it is nice and slimline and therefore is easy to pack away.The batteries are NPF550 and work brilliantly, I've also used this charger to charge my hefty NPF-950 and it handled those fine too.The charger and battery seems well constructed and not bulging or flexing anywhere it shouldn't.Definitely a great option if you need a pair of NPF-550 batteries, these are the ideal size I find for field monitors and work a charm on mine.