For anyone looking for long lasting battery power, take a look at these Kayo Maxtar Dual Capacity V-Mount batteries. A few other people have been using these for a while, and I was just recently turned on to them myself. The large capacity means you can run most 1x1 LED Panels Full Power for 6 Hours straight.
Even if your light doesn't take V-mount batteries, most LED Lights (even small on-camera ones) will accept between 7-16V DC input. Instead of toting around dozens of Sony NPF batteries, with a basic P-Tap cable you use v-mount batteries to power your smaller lighting kit all day. (Most common Video Accessories use a 5.5mm OD and 2.5mm ID Barrel tip)
P-tap to DC 5.5mm/2.5mm Power Cable
I've modified several of my cables so that I can power any LED Light, Monitor, Camera, or other accessories without having to hang the heavy battery. Instead I can easily just place it on the floor or use it to weigh down a light stand (instead of a sand bag). Or throw it into a backpack when going mobile with a large 1x1 LED Panel.
These batteries don't have any intelligent features, but they do offer a USB port, basic battery meter, and each come with their own wall charger. If all you're looking for is a set of reliable batteries that can provide power all day, check out the customer feedback on these Dual Capacity Kayo Maxtar V-Mount Batteries (found here).
177Wh V mount battery in european amazon:
Where can I find them in Europe?
@Itsjohnny2 - At least 18AWG should be good. The battery has built in protection that if it exceeds 6A it will power itself off too.
What gauge wire do you recommend when extending the p-tap?
Thanks for the tip on the batteries, def. going to pick some of those up.
Those Came TV lights look interesting, especially the larger 1x2.
Bust out a review on those!
@Dan K - Sorry i'm not sure. The Kayo Maxtars do come with their own chargers, but I can't say for sure if it will work on other chargers.
We have a https://www.bhphotovideo.com/c/product/386947-REG/Sony_BCL70_BC_L70_Portable_2_Position.html Sony V Mount charger for large lithium batteries.
Do you think this Sony BCL70 charger would charge these batteries okay? In other words, is there any way to know if these batteries have the same charging requirements as the Sony? Internal heat sensors, etc?
To Sony's quality, we bought their giant lith-ion batteries and chargers to power our DVCAMs way back in 2001. The chargers and batteries are still working and holding a charge. Amazing.
the usb port is a nice touch.