Panasonic Alkaline Batteries - Leaking in packaging! - Page 1
Forum section: electronics / general

author: TheBay
author_rank: Unknown
timestamp: July 17, 2023, 11:50:37 pm
content: Panasonic is now off my list for batteries, I had already stopped using Duracell and Energizer a while ago then switched to Panasonic and GP disposable primary cells.I bought a few packs of Panasonic AA's about 6 months ago from a major retailer in the UK, they came off a large Panasonic display stand and absolutely no way they would be counterfeit.I noticed a few weeks ago some were leaking in a fresh pack. I tested about 20 of them with a multimeter and the voltages were all over the place, only 3 were near the correct voltage. I ended up throwing them out.Then this week I go to get an AA battery out of another pack in a drawer and it's leaked everywhere! these have an EXP Date of 2032.I now need to go all over the house and workshop to find where I've put about 40 of these batteries. I think there might be some in the attic in Christmas decorations as well.That's the last disposable AA, AAA or 9V cell/battery I ever buy, I'm going to pop in Ikea and stock up on some more LADDA for everything that will take a AA or AAA.I've got 20 or more things in the workshop that takes 9V batteries, including 4x Fluke multimeters, so I've bought some 9V EBL Rechargeable lithium batteries to try out, if they work okay in everything I'll buy more, if some devices are fussy I'll get some 9.6V NiMH batteries.I really don't think any Alkaline battery can be trusted these days, with all the reformulations and removal of "nasty" chemicals and elements.

author: tom66
author_rank: Super Contributor
timestamp: July 18, 2023, 07:21:27 am
content: Are these batteries made in Belgium?The cheaper Panasonic alkaline batteries seem to be rebadged batteries - probably from an OEM in China. Ones made in Belgium are made by Panasonic Energy Solutions NV.

author: TheBay
author_rank: Unknown
timestamp: July 18, 2023, 08:54:31 am
content: Hi tom66,I have just checked the batteries and the packaging, they are made in Belgium.I just fired off an email to Panasonic Batteries to make them aware.

author: BeBuLamar
author_rank: Super Contributor
timestamp: July 18, 2023, 11:05:58 am
content: I am sure that Panasonic as well as other battery manufactuers are aware of the problem. I think some law forced them to change the formulation that makes the batteries more prone to leak.

author: Stray Electron
author_rank: Super Contributor
timestamp: July 18, 2023, 12:42:28 pm
content: Is there any kind of date on the batteries or the packaging? With that amount of corrosion, those looks OLD and I wonder if they've been sitting on the shelf or in a store room somewhere.

author: TheBay
author_rank: Unknown
timestamp: July 18, 2023, 02:33:35 pm
content: Quote from: Stray Electron on July 18, 2023, 12:42:28 pmExpiry date of 2032

author: G7PSK
author_rank: Super Contributor
timestamp: July 18, 2023, 02:42:17 pm
content: I have some Panasonic D cells well past expiry date still giving full 1.5 volts but they were made in Japan.

author: AVGresponding
author_rank: Super Contributor
timestamp: July 18, 2023, 03:50:29 pm
content: Recently had a couple of Durahells leak; fortunately only in a 3dp battery caddy...