EV3 rechargeable battery pack: charging power supply

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HaWe
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Joined: 04 Nov 2014, 19:00

EV3 rechargeable battery pack: charging power supply

Post by HaWe »

hi,
is there concerns to plug a 12 V DC power supply to the EV3 rechargeable battery pack to charge it?
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pepijndevos
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Re: EV3 rechargeable battery pack: charging power supply

Post by pepijndevos »

Isn't the pack 9V? I wouldn't try.

Where did you get one BTW? It seems you can only get them from educational resellers.
-- Pepijn
http://studl.es Mindstorms Building Instructions
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h-g-t
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Joined: 07 Jan 2011, 08:59
Location: Albania

Re: EV3 rechargeable battery pack: charging power supply

Post by h-g-t »

I used one of these set to 10v with a 13v supply to charge my NXT battery.

http://www.ebay.co.uk/itm/LM2596-LED-Vo ... 4d1301f580
A sophistical rhetorician, inebriated with the exuberance of his own verbosity, and gifted with an egotistical imagination that can at all times command an interminable and inconsistent series of arguments to malign an opponent and to glorify himself.
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mattallen37
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Re: EV3 rechargeable battery pack: charging power supply

Post by mattallen37 »

The battery pack is actually 7.4v (two 3.7v Lithium Ion cells in series). The official Lego charger is 10v DC. While I have heard of people having success with chargers up to 18v DC, I personally wouldn't try it.
Matt
http://mattallen37.wordpress.com/

I'm all for gun control... that's why I use both hands when shooting ;)
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h-g-t
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Location: Albania

Re: EV3 rechargeable battery pack: charging power supply

Post by h-g-t »

Would something like this work?

http://www.ebay.co.uk/itm/2-3-Cells-Li- ... 27bdc3c96a
A sophistical rhetorician, inebriated with the exuberance of his own verbosity, and gifted with an egotistical imagination that can at all times command an interminable and inconsistent series of arguments to malign an opponent and to glorify himself.
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mattallen37
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Re: EV3 rechargeable battery pack: charging power supply

Post by mattallen37 »

No. The Lego battery packs already have a charger built in, they just need an external power supply.
Matt
http://mattallen37.wordpress.com/

I'm all for gun control... that's why I use both hands when shooting ;)
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