Datasheet

Multi-battery Packs

You may eventually find yourself needing a big battery, say because your project has twice as many LEDs or you want

it to last twice as long. A lot of people think "well I know that if you parallel two batteries that doubles the capacity so I'll

do that!"

For example, we could take two 1300mAh batteries, that are 3.7V nominal and connect them together in parallel…

Not only should you not do this with alkaline batteries, but its especially dangerous with lithium batteries. One battery

can discharge into another, damaging it or causing a fire!

If you ever need a larger battery, you should upgrade to a larger battery! Like this one which is twice the size and has

twice the capacity.

However you should never ever do this!!