I bought these to use with guitar effects pedals, which in the past have not worked well with rechargeable 9v batteries, either because other batteries don't actually deliver enough power, or because they're not quite the standard size. These Paleblue ones work perfectly. They're the exact right size 9v is meant to be, and although I can't measure the power exactly, they are powering everything correctly. The time they last depends on the particular pedal I use them with, but even the most power-hungry pedals are lasting a couple of hours with them, which indicates the capacity is as much as Paleblue advertise. Recharge time has been quick, too. I'll certainly be buying more.

Makes perfect sense Very clever design.

Ordered 8 AA batteries as like many I despise single use batteries and normal rechargeable batteries do not even charge to the full 1.5v. I tested these and they did reach 1.5v. Been in use in keyboard and mouse for a couple of weeks and so far discharge rates are looking good.
They are also funky as heck!

Really good quality batteries including manufacturing quality.

I go through a 9v battery every 3 gigs so that equates to 1 battery every weekend. I have tried rechargeable batteries in the past that have not been up to the job. The Pale Blue 9v battery worked perfectly. As they come in a pack of 2 I can charge one whilst I use one saving me ££££s

Great product.... this is a game changer and such a great alternative to single use. Lovely packaging.

kids using them straight out of packet in their xbox controllers, re-charge via small solar panel during the day, perfect - no more landfill

Very Satisfied