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An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy. Connected a battery's negative to another's positive is a way to increase voltage, useful when a battery outputs low voltage.

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1 answer
663 views

Can I use medical injection water to fill lead acid battery?

Can I use sodium chloride injection ip (0.9% W/V) instead of distilled water to fill a lead acid battery?
Warriorrev6300's user avatar
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2 answers
629 views

Can we connect two mobile batteries in series or parallel

I have two mobile batteries, one with 3.7v 1500mah and other is 3.7v 1300mah. I am using a DPDT switch to switch the two batteries in series and parallel. … I use in parallel mode (3.7v) to charge the batteries and in series mode (7.4v) to power my amplifier. And is it good to connect two batteries with different mah? …
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