Cheap alternative to Duracell AA batteries

[Bertie Doe]

Yep, the 7Day rechargeables are def half mil longer than any of my other AA's. I'll compare them with the Eneloops when they arrive. Thanks, I'll bear the Maplin's in mind - for future reference.

Yes you are correct. I do use AdblockPlus in my browsers. Are you referring to my comment about the amount of Amazon spam? Yes I am aware that Amazon is on ABP's whitelist. Last month, I got some advice (elsewhere) and switch to Firefox, rather than my default I.E. This seems to have reduced some of the Amazon spam, when I use say, Google or Ebay.

[Mike Tomlinson]

En el artículo , Bertie Doe escribió:

I think this is deliberate, it's to stop you using rechargeables in appliances designed for standard high-drain AAs. If you have to force anything, it's a hint that there's something not right.

[Bertie Doe]

En el artículo , Bertie Doe escribió:

You may be correct, I've got two disposable and two 7day rechargeables (now dead) that need to be re-cycled. I've also got two Energizers. The latter is fully discharged, so therefore safe to use with micrometer.

'Performance' disposable (99p Shop) = 50.00mm 'Energizer' re-chargeable = 50.10mm

7Day Shop re-chargeable = 50.30mm

As you say, the rechargeables do seem a touch longer. Let's hope the newly ordered 'Eneloop' are closer to 50.10 and won't strain cap on the Braun.

[Bertie Doe]

Further Googling also suggests that it's also the thickness that presents a problem :-

A quick measure shows the following diameters :-

Performance disposables 13.45mm

7Day AND Energizer rechargeables = 14.25mm

There follows one glimmer of hope in bcCopenhagens quote, that Eneloops conform closer to disposable AAs. Lets hope they mean length and thickness :-)

[PeterC]

Well, my pre-Panasonic Eneloops go in OK. I do have some Aldidl Tronics and they're OK also. The 7D AAAs are a tad longer than the Eneloops but are still OK in torches but a bit snug in push-on/off lights. I use clingfilm wrapped over both ends of a cell to measure it with vernier calipers. If necessary, the double thickness of plastic can be deducted.

[newshound]

Babz on eBay also have a good range of suppliers, pack sizes, and battery types. Quick and good prices. No connection, just my usual "first stop".

[newshound]

More news on Babz, who have currently disappeared off eBay

[tabbypurr]

I wasn't impressed with their prices

NT

[Bertie Doe]

Update: The Eneloop rechargeables arrived Wednesday and they do fit the Braun Oral B's ok.

It's a tight fit but they are shorter than the 7Dayers and are the same size as my old Energizer rechargeables i.e. 50.10 mm long by 14.25 mm dia.

Thanks again Tim W for recs' on the Eneloops. Early days but there seems to be plenty of 'oomph' for the hi-drain toothbrushes. If they last the advertised 2000 re-chargings (2000 months = 166 years) ... I'll have to Will them to my great grandchildren :-)

I still have no idea why re-chargeable batteries are wider and longer?

[PeterC]

The speed of the brush isn't quite as high as the rechargeable brush is when it's just recharged but is higher than the last 2 days or so of the recharge. The first clue to the cells getting low is that the brush labours a bit - or can be stalled easily - when overloaded. I recharge the replacements towards the end of the run so that they're fresh. They should do at least 4 - 5 weeks, perhaps more if you do the recommended 2 minutes (I do a bit longer as my teeth can't be covered in one pass - long in the tooth, I suppose).

[Bertie Doe]

Yep the old 7Day R/C began to labour within 3 days of death. I'd be very happy if the Eneloops last 5 weeks.

I have a sneaky feeling that the EU will kill off disposables, some day soon. At Aldi, they fill 2 drums of dead cells, twice a week.

Not sure what happens to 'em ...