4 Cell Lithium Ion Battery Backup Time

Rechargeable lithium-ion battery used for Olympus camera works well everytime.

Like the ability to change 2 batteries at the same time and keep them together. Thinking about getting another for my other two Lithium Ion batteries.

The Watson Lithium-Ion Battery is definitely a great choice for those who's original GoPro battery is just not cutting it! I bought this battery to replace the worn out battery that came with my GoPro Hero 3. The original battery was to the point I was lucky to get 2 hours at most, even without the screen attached. With this new battery, I was able to complete an entire overnight Timelapse, note that's without the screen, but even with the screen on it's still a lot better! I would 10/10 recommend this. Did I mention B&H Photo's amazing shipping time!

I bought the EN-EL 14A Lithium-Ion battery for use in BG-N12 Battery Grip for use during a once-in-a-lifetime photo expedition to Maui, Hawaii. The battery held its charge.

I purchased the 3400 mAh Rechargeable Lithium-Ion Battery for my LEDlenser ML6 Lantern so that I would have a spare. The lantern comes with a stock 3000 mAh OEM battery. Using a battery analyzer made for testing of Lithium Ion 18650 batteries, I placed both batteries side by side. I ran four tests that Charged/Discharged and Charged again. I wanted to both exercise the new batteries, as well as compare their performance 3000 mAh vs 3400 mAh. Surprisingly the 3000 mAh battery out performed the 3400 mAh battery by a great deal. This was disappointing to have purchased a top notch battery so I would have extra capacity for my ML6 Lantern. Perhaps the company should question their supplier. The 3400 mAh battery was left in the dust. 3000 mAh LEDlenser Battery 3400 mAh LEDlenser Battery Test #1 3263 mAh 3137 mAh Test #2 3269 mAh 3176 mAh Test #3 3357 mAh 3178 mAh Test #4 3316 mAh 3179 mAh

Watson BP-828 Lithium-Ion Battery is good quality battery, work very good...

The Nikon EN-EL 18d Rechargeable Lithium-Ion Battery is a super battery with an incredibly long life and easy to recharge. Highly recommend!

I use this battery as a back-up to my Nikon battery EN-EL4a rechargeable Lithium-ion Battery Pack. I always use my original Nikon battery but if I am out in the field and my Nikon battery goes down after many shots, I then switch to the the Watson EN-EL4A Lithium-Ion Battery Pack as my back-up until I can re-charge the Nikon battery again at home. I find it's more economical using it that way since there is such a big price difference between the Nikon Battery and the Watson Battery. However the Watson battery is a very good battery and reliable in every way.

Having the BL-5 battery chamber cover, and used with the EN-EL18c Lithium-Ion battery allows you to extend your camera's power. When used with the MB-D18 Battery grip, and a fast XQD memory card this will allow your D850 to scream at 9fps! Highly recommend!

Having this as a spare battery was great - maintained its charge as well as the original Pentax lithium ion battery and let me continue with my photography.