Rechargeable Lithium D Cell Batteries 7500mWh with USB-C Charging Cable, 1.5v LR20 D Size Battery for Flashlight/Floodlight &Toys(2 Pack)

I bought them for Nerf guns because D batteries end up costing more than the Nerf gun overtime. I fully charged them, and they have died yet even after extensive use. They charged alright, from the description it takes 2 hours to fully charge. The blinking light was confusing at first but a quick read of the description and it wasn’t anymore. I bought 8 batteries when I only needed 6, the other 2 will come very much in handy. These are nearly double the price of a 8 pack of Duracell D batteries but since they’re lithium ion, they’ll last much longer than alkaline. The box and plastic around the batteries was easy to open with/without a knife or scissors. They were a bit light which worried me a little at first, but glad they work well and last a long time. 100% recommend, especially for Nerf guns.

Works great. Use batteries for my locating equipment regular batteries die within a week they don’t I recharge every 2 weeks just to make sure.

These batteries are great! I got them for my grandson's monster truck track and the typical store-bought batteries would last about two hours. These batteries arrived fully charged and my grandson has used them for a total of more than six hours so far and they are still powering the truck launcher like they were fully charged. The other great feature is the ease of recharging them-simply plug into a USB port with no special connection required. The value is good too, being only $35 for a set of eight batteries.

Work great, long life. Only complaint is I wish the wire from the batteries was longer so they’d reach my plug better. Great for the price & are holding up well with frequent use

Purchased 8 of these batteries. Used used 4 in a motion on the side of the house. Weren’t working in a day. Replaced with the other 4. Seems to be working after 3 days. The original 4 batteries have beenPlugged in for 12 hours and still won’t charge. Guess it’s hit and miss in these. I missed return window because I didn’t install right away.

The batteries stay charged for a weeks. We used three in the cat food dispenser and at lasted weeks.

These things are absolutely perfect I have yet to have to charge them more than once my son uses them in his Hot Wheels track they are lightweight and they hold a charge better than your average Duracell or good news is you can retard these ones great items very happy with my purchase!!

It's light weight, very easy to use but the only negative things are the very short life after being charged, as well as 1 of them are faulty.I will get them replaced and update if they end up better or worse.