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Old 19th February 2013, 06:30 AM   #1
juanito is offline juanito  Europe
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Default Batteries lifepo in Europe?

Hi, I'm trying to power a tA2020 amp from 41hz I build in a portable system.
I thought of batteries like are sugested in the 41hz forum: batteryspace.com
3300 mha 12.8v lifepo
The problem is that shipping these things from USA is extreamly expensive, is there any where here in Europe where I can get a battery kit with charge and discharge manage board?

Also where can I get a linear power supply wih 12~14v.
Thanks
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Old 19th February 2013, 01:23 PM   #2
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Hola juanito,
try hobbyking (europ). They sell parts for remote control toys. There you'll find LiPo-Accus and according charger quite cheap. I Don't know if they have LiFePo, but Lipo used for these toys where you draw lots of amperes will work. Power supply 13,8V @ many amperes you'll find at Conrad, Reichelt, Völkner, Pollin (sorry all german), but you will hardly find a linear one. Today the are switchmode.
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Old 19th February 2013, 04:25 PM   #3
juanito is offline juanito  Europe
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Thanks, I'll look throgh those lifepo batteries at hobbyking. They have a model named zippy flightmax 13.2v lifepo4... The enclosure is a bit fancy colours.
Price for shipping is totally diferent from batteryspace.
Interesting but I have to see how to use this with a battery charge manager.
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Old 21st February 2013, 05:50 AM   #4
blossom is offline blossom  New Zealand
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juanito

Are you wanting to use solar panel for charger? Or just charge from charger?
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Old 21st February 2013, 06:11 AM   #5
juanito is offline juanito  Europe
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Charge from charger. Now I find out that shipping batteries is complicated, so I'm not sure if to spend 150€ plus custom duties, taxes and agents. Could be 200€, pfff!
Thanks
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Old 21st February 2013, 06:17 AM   #6
juanito is offline juanito  Europe
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Oh! And the betteries from hobbyking, the liFEPo ones they have called flight something wich are 13v don't know how to mount them with a battery charge manager, where as in battery space they sell the whole kit:
Lifepo with PCB and a CMB: Custom LiFePO4 26650 Battery:12.8V 3300 mAh (2x2 42Wh 7A rated) with CMB (3.96)
Quite cheap if you live in the US.
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Old 21st February 2013, 06:47 AM   #7
blossom is offline blossom  New Zealand
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The voltage of 13 volts is fine.

The zippy flightmax battery from Hhobbyking can be charged with this charger IMAX B6 LCD Digital LiPo NiMH Battery Balance Charger | eBay not sure if that give you free shipping where you are but does to me. Also not sure if the plugs are all set up for those two items to match, I think they are.The only thing to consider is that you should ideally run some form of low voltage cut circuit with lifepo4 batteries.... it the deep deep cycling that could possible damage them.

Here is a bms for lifepo4 4s(4 cell) PCB for 4 cells (12.8V) LiFePO4 Battery Pack at 7A limit
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Old 21st February 2013, 08:33 AM   #8
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And if I would like to use a solar panel with a 12V5A controller to Charge a 12V LiFePO battery? Is 18 Ah enough for 6-7 hours of play with a TA2020?
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Old 21st February 2013, 05:11 PM   #9
blossom is offline blossom  New Zealand
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4ah give 10 hours play
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Old 17th March 2013, 01:08 PM   #10
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thanks for your reply.
How did you arrive in that result?
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