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Battery life in BT keyboard?

Message #1 - Posted 2009/03/16 - Mark

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the keyboard is left switched on all the time?

Cheers ... Mark

Message #2 - Posted 2009/03/16 - Andy Hewitt

Mark wrote:

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the keyboard is left switched on all the time?

Cheers ... Mark

I leave mine on all day, and switch off overnight, and they last at least 3 months. I do use NiMH bateries though, two sets used in rotation.

Message #3 - Posted 2009/03/16 - Richard Tobin

Previously, Mark wrote:

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the keyboard is left switched on all the time?

A few months. They are much better than mice, since they don't have to do anything except when you press a key.

I tried using rechargeables, but after a few cycles they didn't work reliably even when just charged.

-- Richard

Please remember to mention me / in tapes you leave behind.

Message #4 - Posted 2009/03/16 - Mark

On Mon, 16 Mar 2009 17:35:57 +0000, Andy Hewitt wrote (in a previous article):

Mark wrote:

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the
keyboard is left switched on all the time?

Cheers ... Mark

I leave mine on all day, and switch off overnight, and they last at least 3 months. I do use NiMH bateries though, two sets used in rotation.

Thanks for the replies. You and Richard have differing opinions about rechargeables! I've just bout an 8-pack from Tesco for £1.40 ('Value' batteries). I'll see how long they last, then consider NiMHs.

Cheers ... Mark

Message #5 - Posted 2009/03/16 - Stewart Smith

Mark wrote:

Thanks for the replies. You and Richard have differing opinions about rechargeables! I've just bout an 8-pack from Tesco for £1.40 ('Value' batteries). I'll see how long they last, then consider NiMHs.

Cheap batteries can be pretty terrible in terms of peak power output and energy storage. I've got a Samsung digital camera that works great with expensive primaries or high Amp-Hour recargeables but won't even turn on if you put cheapo cells in it.

Stewart

Message #6 - Posted 2009/03/16 - Andy Hewitt

Stewart Smith wrote:

Mark wrote:

Thanks for the replies. You and Richard have differing opinions about rechargeables! I've just bout an 8-pack from Tesco for £1.40 ('Value' batteries). I'll see how long they last, then consider NiMHs.

Cheap batteries can be pretty terrible in terms of peak power output and energy storage. I've got a Samsung digital camera that works great with expensive primaries or high Amp-Hour recargeables but won't even turn on if you put cheapo cells in it.

The keyboard is very low pwered compared to a camera for sure. I have 7dayshop, 2500mA own brand ones, and they've been working fine over about 8 months (only had a couple of cycles so far), and last almost as long as the original Alkalines.

I use them in the mouse as well, but that lasts about half as long.

In any case, using two sets of rechargeables in rotation means you don't have continuing costs, and there is always a fresh set ready.

Message #7 - Posted 2009/03/16 - Jaimie Vandenbergh

On Mon, 16 Mar 2009 17:28:34 GMT, Mark wrote:

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the keyboard is left switched on all the time?

I got about 5 months out of 2600mAH NiMH rechargables - which coincidentally is about the same time as they'd drop most of their charge sat on the shelf! The power draw is tiny.

Cheers - Jaimie

Programs that crash have been proven to be less useful than those that don't. -- Apple Technical Note OV04

Message #8 - Posted 2009/03/17 - whisky-dave

"Mark" <captain.black@gmail.com> wrote in message news:0001HW.C5E43CB700B172FDF0386530@news-text.blueyonder.co.uk...

Just found an Apple Bluetooth Keyboard (the white, non-metallic one) in a charity shop for £2. I see they take AAs, but how long will a set last if the
keyboard is left switched on all the time?

Cheers ... Mark

Mine last between 5-7 months using standard duracells. Sometime's it gives me a warning of low battery, which can be check in the bluetooth setup panel. Barttereis seem to be OK for up to a couple of weeks after
the messages, I just switch the keyboard off an on and it finds it again.

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