Kastar 2-Pack NP-BY1 Battery + LCD USB Charger

I bought these for my mom to replace her Canon Coolpix 550 camera battery. It worked perfectly! Definitely worth the money to have a backup charger and battery pack!

Used these batteries for my Sony action cam and they work great. Allows me to keep filming on the go. Charger works great, the power meter is a definite plus, and yes, it charges the OEM battery just fine.

I'm glad I ordered this after misplacing/losing my original battery charger. It came with two batteries which work in my Nikon Coolpix camera. These batteries look identical in size and contact placement to the original. However, it charges its own battery (only tried one so far) but totally does nothing with the original battery. I made sure the battery was inserted correctly. (The arrow on the Kastar battery is on the opposite side to the one on the original Nikon so one needs to look at the + - indicators.) The battery will insert in the charger with either side up but will only make contact with the correct side up. I have no idea why the Nikon battery isn't charging but it doesn't matter as I now have two replacement batteries.

I got the batteries and charger for an older camera that I hadn't used for several years, so figured the original battery might be shot or at least not hold much charge. It ended up holding more charge than these batteries. Also, the charger showed partially charged batteries as being fully charged.

Upon receiving the items, I noticed one of the batteries would not take a charge. I submitted a request for refund from the seller. The seller elected to send me another battery. That battery would not take a charge. I then realized that two of the batteries did not seat properly in the charger. It appeared the pins did not full contection with the two batteries. In order the charge the batteries; I had to place a piece of a toothpick between the end of batteries and the slot to cause the batteries to seat tight against the pins of the charger. In my opinion, these items are none functional and I will seek other charger/battery from a local Electronic Store. To say the least, I am totally unhappy with these items.

Works great, got my old Pentax working again at a really affordable price!

Great replacement batteries and changer

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