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I found a few cheap 12v lithium-ion batteries |
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beer_n_chips 
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Joined: 24 April 2014 Status: Offline Points: 59 |
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 Topic: I found a few cheap 12v lithium-ion batteriesPosted: 16 October 2014 at 9:44pm |
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http://www.ebay.co.uk/itm/12V-DC-Rechargeable-Li-ion-Battery-Pack-Black-case-6800mAh-Lithium-ion-UK-/171473305095?pt=UK_CCTV&hash=item27ec9afe07
Or: http://www.ebay.co.uk/itm/12V-3800mah-5V-USB-5800mah-DC-Rechargeable-Li-ion-Battery-Pack-with-UK-charger-/121461451061?pt=UK_CCTV&hash=item1c47aaa935 Looks like the PERFECT solution for a fairly cheap 12v lithium-ion battery pack with built in protection circuits for 12v boomboxes/ghettoblasters and the like. Second link has leds to show how much battery life is left in the pack. But the capacity of it nearly is half that of the 6800mAh pack. |
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lutkeveld
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Joined: 23 September 2013 Location: The Netherlands Status: Offline Points: 517 |
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Posted: 17 October 2014 at 12:26am |
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Untill you realise it only has 1/3 of its claimed capacity, can't cope with power peaks and will go into protection, has very low quality cells, a crap charger and 1/3 of the package is filling.
It isn't worth it
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login4
Old Croc 
Joined: 03 April 2006 Location: Wales Status: Offline Points: 1552 |
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Posted: 17 October 2014 at 3:40pm |
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+1 the little protection circuits are rubbish,
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CELTIC SUBSONIC SOUND SYSTEMS
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Blaize110
Young Croc
Joined: 11 May 2010 Location: Gloucestershire Status: Offline Points: 673 |
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Posted: 17 October 2014 at 7:09pm |
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I don't think they're worth it for the price, I picked up some very similar ones for £10-20 a couple of years ago. As long as you don't expect the capacity to be as listed, mine were good little batteries for a couple of my smaller projects.
I think they've upped the price as Royal Mail have cracked down on the import of Li-Ion batteries in normal post.
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Gavos
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Joined: 15 June 2013 Location: out there Status: Offline Points: 59 |
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Posted: 18 October 2014 at 11:36am |
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I have been watching these for a while,
http://www.ebay.co.uk/itm/331257847808?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT I have a blue one that i got for £12 a couple of years ago it drives a single sp60 with a cheep tda2030 amp It works realy well and plays loud last me a full days play on site. http://www.ebay.co.uk/itm/AC-DC-12V-Single-power-supply-TDA2030-amplifier-board-2-0-dual-channel-TDA2030A-/151406874128?pt=UK_Sound_Vision_Amplifier_Parts&hash=item23408d8e10 Thats my 2ps worth, I hope it helps.. |
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lutkeveld
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Joined: 23 September 2013 Location: The Netherlands Status: Offline Points: 517 |
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Posted: 18 October 2014 at 1:46pm |
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Same stuff other package. Don't use a class AB like the TDA2030A for portable uses. Look for a TA2024 or similar class D amp
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