perprokay 900mAh 3.7V ICR 18350 Li-ion Rechargeable Batteries 4 Pack, 3.7V Lithium-Ion Battery 18350 Rechargeable Battery for Handheld LED Flashlight, Portable Electronic Devices...4 Count

Replaces my RadioMaster rechargeable batteries. Cheaper since I bought four for what the other wanted to charge for two. The battery specs are the same as the original batteries. They charge speed was the same as the original batteries. They fit the same, they are the same size.

Work OK in my Wuben E7 mini flashlight, but are a couple of millimeters shorter than expected to be a perfect fit. The product description says they are 38mm long, but the actual batteries are 35mm. Fortunately, the light has a strong enough spring to hold them in place unless you drop or tap the light on the end, at which time, the battery disconnects momentarily and the light goes off. If the light is used in the horizontal position and doesn't get bumped, the batteries work fine. A little bit of annoyance, but not terrible, so I'm keeping them as backups. The seller contacted me promptly after my initial review and has made every effort to make things right. I appreciate their conscientious attention to customer satisfaction and would definitely buy from them again.

Order arrived on time and product performs as advertised.

I use this in my Holosun P.ID HL light but it also works in my TLR 1 HL. It's nice that they are rechargeable so I don't need to keep buying replacements. Nothing else to say, it's a battery and it works.

Did not fit into flashlight, slightly larger than previously purchased batteries.

Good

Good quality

I usually stick with battery brands I know esp for the lith ion types. Wasn't able to find any from EBL or other big brands in this size, so tried this one. From results to date, if these guys make other sizes I won't hesitate to buy in the future