Rechargeable 9v batteries

B0bbyEwing

Need a 9v battery ... but don't use it much, so looking at rechargeable.

I'd need to buy a specific charger to do this as my current one doesn't do them & so when searching I noticed 9v batteries you charge via USB cable.

But no 'brands' that I recognise at all.

And I'm cautious about no-name batteries.

At the moment this is only for use in a multimeter. Can't think of anything else I have which requires a 9v battery.

Have any of you picked up one of these & can say a brand has been ok for you?

I don't want to pick up a 'normal' one, use it a couple times, come to use it again a while later & find it's dead.

PHK

You won't really gain anything by using rechargeables. Most 9v rechargeables seem to be NiMh which has a higher self discharge rate than disposable batteries (i.e. will go flat quicker when not in use)

If you can find a Li-ion battery then it has about the same discharge rate. 

For a multimeter that doesn't draw much current (some do nowadays) then a Zinc-Chloride will give better life. 

PRAISETHESUN

We have some rechargable 9V batteries at work for a few things which I'm fairly sure are just the Amazon basics brand. Decent cost, decent performance, but needs a dedicated 9V charger as you already mention. No idea about USB chargeable ones.

RumRat

Loads of USB rechargeable on Amazon......Amazon.co.uk : usb rechargeable 9v battery

ballyblack

Can't think of anything else I have which requires a 9v battery.

Smoke detectors

B0bbyEwing

RumRat said:

Loads of USB rechargeable on Amazon......Amazon.co.uk : usb rechargeable 9v battery

Except I didn't say I'm struggling to find them. 

I can find them. USB chargeable ones would be ideal but I'm weary of these brand names I've never heard of stamped on them. 

ballyblack said:

Can't think of anything else I have which requires a 9v battery.

Smoke detectors

Mine don't, which is why I said "I have". 

RumRat

B0bbyEwing said:

RumRat said:

Loads of USB rechargeable on Amazon......Amazon.co.uk : usb rechargeable 9v battery

Except I didn't say I'm struggling to find them. 

I can find them. USB chargeable ones would be ideal but I'm weary of these brand names I've never heard of stamped on them.

In that case you'll have to buy a recharging unit and buy Energizer or Duracell.....
Nothing wrong with those unknown (to you) named ones. Plenty of reviews to say they work fine.
I've bought many of the less known makes of AA batteries etc without any problems, some of them outlasting that annoying rabbit.
Anyway, at those prices it's worth a punt for one you don't use very often.

sausage_time

Not sure rechargeable batteries are a good fit for smoke detectors (or carbon monoxide detectors for that matter) because of the higher self discharge rates.

john1

I have used Battery Station who have a large selection of batteries 

Neil_Jones

sausage_time said:

Not sure rechargeable batteries are a good fit for smoke detectors (or carbon monoxide detectors for that matter) because of the higher self discharge rates.

Many electrical smoke/carbon monoxide detectors use rechargeable batteries to continue to provide monitoring in the event of a power failure.  They're just not end user replaceable.

PHK

Neil_Jones said:

sausage_time said:

Not sure rechargeable batteries are a good fit for smoke detectors (or carbon monoxide detectors for that matter) because of the higher self discharge rates.

Many electrical smoke/carbon monoxide detectors use rechargeable batteries to continue to provide monitoring in the event of a power failure.  They're just not end user replaceable.

Yes, but not for a smoke detector (or multimeter) that isn't connected to mains power.