Very prompt delivery - tracking facility - well packaged - good quality - can’t comment on performance until I’ve had ‘em a month or two but expecting it to be outstanding.

I got these for my electric guitar, which has a piezo bridge. I had previously tried conventional NiMh rechargables, but these tended to be over-sized and not fit properly in the battery compartment, meaning it did not close properly. I tried another cheap USB lithium rechargeable solution, but the voltage converter (I assume) introduced constant high-pitched noise that made it unusable for the guitar. I had almost given up, but found these. They are actually the correct size, and don't introduce noise! The piezo does not draw a lot of current so I have not ran the battery down to report on their capacity, but it has lasted a few months with no signs of stopping, and with everything else I am inclined to believe their claimed capacity. They cost more than other solutions, but it is worth it as the size and components are clearly better than competitors.

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