Pseudonym_
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Electrolysis with a Li-Po Battery
I'm wondering if it's safe to electrolyze directly (hook up negative and positive to graphite electrodes in a solution) with a 5v 5000mAh Li-Po
battery. If it's not are there any ways to do it safely?
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Sulaiman
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Lithium cells range from 3 to 4 volts,
so a 5v Li-Ion battery must involve some elactronics.
Assuming that you are referring to usb power packs,
if you do not short-circuit it, then it should be ok
A 10 Ohm or more resistor, or a small 6v filament lamp, in series with the supply output, would allow for inevitable mistakes 
EDIT: lamp examples http://uk.rs-online.com/web/p/filament-indicator-lamps/65596... http://www.ebay.co.uk/itm/2x-MES-Miniature-Lamp-Light-Bulb-6...
[Edited on 28-2-2016 by Sulaiman]
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Pseudonym_
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Thanks for the reply,
Do i hook up the lightbulb/resistor to the positive or negative terminal?
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Sulaiman
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either will work the same, or you could have 5 or 4.7 ohms in series with each battery terminal.
I normally use (negative) as 0v/ground and (positive) as 'hot'/'live' where I would add the resistor.
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