Rechargeable Lithium D Batteries with 4 in 1 USB-C Charging Cable,1.5V D Size Cell Battery 5600mWh for Flashlight Toys & floodlight (4 Pack)

D batteries are expensive. I have other rechargable batteries and wanted to try these. The motion sensor lights I use require 4 D batteries. This rechargeable station and the batteries are working out well. I bought a second set for another item using D batteries. I highly recommend this item.

I've used lithium rechargeable batteries for nearly 10 years now and over time, they just keep improving. However, if anyone thinks that this battery chemistry (vs the alkaline brothers) are comparable, you'd be sorely mistaken. These lithium versions simply do not hold the same saturation of charge, or duration of discharge as an alkaline battery. However, you can't recharge an alkaline battery, so the point here is not achieving comparable battery capacity, it's about the ability to charge it right back up, for pennies, rather than having to buy and replace the entire battery. Perhaps this saturation of charge will become a moot point in the coming years, presuming improved battery chemistry are developed but until then, this is what you get and for us, it's a welcome trade off. I'd much rather pull out a battery like this and recharge it in an hour and pop it back in, so my child can go play with their old-school battery-operated toy, than continue to waste our money replacing alkaline batteries, even if they do last a bit longer initially. Anyhow, these D batteries have already paid for themselves, in our household and will continue to make us money, so to speak, for years to come, as they can be recharged an incredible amount of time before even beginning to diminish output. This is the same reason that I build li-ion 18650 battery packs using recycled batteries from scooters, laptops, etc, as they almost always hardly lose capacity, despite some of them being more than 10 years old before I get my hands on them. As internal resistance increases with time and use, the storage and discharge capacity will dwindle slightly but the batteries themselves, will continue to serve me well for many years to come. It's a beautiful thing, imo. Anyhow, thus far, I highly recommend these batteries. If however, over time, if they ever fail or become problematic, I will certainly update this review accordingly. Until then, enjoy!

This is genius! The batteries charge all at once with a 4 in 1 type C charger, and they are extremely light! Only downside is the charge doesn't last long enough. I needed to charge after a few days of using a baby swing.

Very easy to use and holds a charge. Environmentally responsible batteries.

These are my go-to. Excellent quality, battery length, and value.

Batteries barely last 10-12 hours when used in a small fan. They are lightweight. They are not worth what we paid because the have such a short time that they are usable. Poor quality. Would not buy again.

These seem to work very well havent had any issues

No special charger req'd, just a C cable. It comes with a 4 way splitter C-USB cable. But if you need to charge, any C-USB cable will work. The 5600mAh will not run my laser level which requires 4 batteries. I am still having to use regular non rechargeable batteries. I will order 15000mAh batteries to see if they will work.

Super product.ingenious.each, single battery can be separetel charged through the USB connection on its body.very expensive, but good thoughtful design with appreciable quality