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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    I'm talking AA and AAA batteries, what brands do you use?

    Normally I just buy what's on offer in the pound shop etc but there must be a 'greener' battery?

    Rechargeable probably a good option, any idea on brands etc?

    • CommentAuthorowlman
    • CommentTimeAug 10th 2017
    Personally I haven't had much luck with rechargeable AA & AAAs so I don't buy them anymore.
    • CommentAuthorIan1961
    • CommentTimeAug 10th 2017
    I use the Eneloop range of rechargeable AA & AAA battery. They are very good for use in appliances that only get used infrequently as they retain their charge very well when not being used.

    • CommentAuthorBeau
    • CommentTimeAug 10th 2017
    Saw a review on rechargeable batteries on the Gadget show some years ago and Uniross came out very well. Bought a charger and batteries from Toolstation and they have been excellent. Now have lots of AA and AAA from Uniross and had no failures to date.
    • CommentAuthorgravelld
    • CommentTimeAug 10th 2017
    Another Eneloop user. Eneloop Pro are best for my use (although fewer recharges, the limit is still quite high).

    Need to invest in a decent charger as well I think.
    • CommentAuthorsam_cat
    • CommentTimeAug 10th 2017
    Eneloop and Eneloop pro for anything that needs it (I am a photographer, the flash requires good batteries), and a good charger is worth its weight in gold.. I use a Technoline BC 700 charger (beware the cheap clones that look the same and claim to be the same, they are not. A proper one will cost about £35)

    We also have a small pile of cheap rechargeables which work well enough for wall clocks/kids toys etc.
    • CommentTimeAug 10th 2017
    We have used hundreds of GP ReCyko NiMH rechargeables in a recent trial, and I use lots of the Maplin own-brand at home, plus some of the LSD/hybrid ones.

    All good.

    But don't run them right down and leave them that way:



    • CommentAuthorsnyggapa
    • CommentTimeAug 10th 2017
    Had a look on eBay and there's all different types , different amperage etc. What is a normal size to replace remote control batteries etc? They are AAA but not sure on amperage required?
    • CommentAuthorsnyggapa
    • CommentTimeAug 13th 2017 edited
    The number you see won't be amperage, it will likely be mah - milliamp hours - a measure of capacity. You can use any mah rated AAA, the difference is the higher the mah the longer they last , in almost direct proportion.

    remote control batteries prob don't need much at all, you're unlikely to charge them more than once a year no matter what you get - 750,800 or thereabouts

    for AA I'd look at 2000mah for general purpose stuff , 2500 if it has to absolutely last as long as it can
    • CommentAuthorMike1
    • CommentTimeAug 14th 2017
    Eneloop again, plus Technoline BL-700 Intelligent charger.
    • CommentAuthorgoodevans
    • CommentTimeAug 14th 2017
    Eneloop for me also. But batteries designed for dect phones are also good (usually low capacity but many recharges). The trick here is not to buy batteries with high capacity - to get high capacity the manufactures make the anode/cathode (I don't remember which) stacks too thin which break down. (high capacity exception being eneloop).

    Also the NiMH batteries don't suffer memory problems so strict a regime of discharge is not required.
    • CommentAuthorgravelld
    • CommentTimeAug 14th 2017
    The other thing you have to watch is voltage. The reason I only use Pros is because they seem to keep their voltage better than the normal Eneloops. This seems to matter for things like radio TRVs like the rebadged Danfoss ones I have. At lower voltages the TRVs just seem to give up in a non-deterministic (to me) fashion.
    <blockquote><cite>Posted By: goodevans</cite>The trick here is not to buy batteries with high capacity - to get high capacity the manufactures make the anode/cathode (I don't remember which) stacks too thin which break down. (high capacity exception being eneloop).</blockquote>

    So the total life is shorter (before you bin them?). That's interesting.

    Does that apply to all 'eneloop' type batteries (ie non-self-discharge) or are eneloops better than all others for some reason?
    I was just about to order some Uniross batteries (being the cheapest of the brands mentioned) and I noticed there are a load of unbranded ones from Honk Kong for 25% of the price. Are these likely to blow up or worth a punt??
    • CommentAuthorMike1
    • CommentTimeAug 17th 2017
    Posted By: Simon Stillare eneloops better than all others for some reason?

    Yes, it's not marketing hype, Eneloops really are better. They incorporate various advances in manufacturing processes and the chemical composition & structure of the materials used - particularly the alloy used for the cathode - that aren't found in other NiMH batteries. Presumably because Sanyo/Panasonic hold the patents.
    • CommentAuthorsnyggapa
    • CommentTimeAug 18th 2017
    to be honest, eneloops are so cheap in relative terms, why buy anything inferior
    <blockquote><cite>Posted By: snyggapa</cite>to be honest, eneloops are so cheap in relative terms, why buy anything inferior</blockquote>

    I've been using NiMh batteries for about 15 years+ I'd guess but Eneloop's marketing had never made a decent case for them being superior. I've been buying GP ReCyko and Uniross Hybrio at at the moment - there's about a 50% premium for Eneloop on eBay. 1000 cycles vs 2000 cycles is irrelevant if they're being charged less than weekly.
    I went for the uniross in the end
    • CommentAuthorBeau
    • CommentTimeAug 24th 2017
    Dont blame you.

    The Eneloop's may be great but for household duties I cant fault the Uniross.
    • CommentAuthorSeret
    • CommentTimeAug 30th 2017
    Posted By: Victorianeco
    Rechargeable probably a good option, any idea on brands etc?

    It's not just a good option, it's a no-brainer. Disposable batteries are waaaaaaay more expensive and I find them a pain in the a*se. Much easier to just buy batteries once and keep recharging. Then you've always got them in the house when you need them.

    As for brands, Which testing suggests indicates the best are:

    1) Panasonic Eneloop
    2) Duracell Recharge Plus
    3) Energizer Recharge Power Plus
    4) GP ReCyko+Pro
    5) Varta Rechargeable Accu
    6) Energizer Recharge Extreme
    7) Ikea Ladda

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