Basically, I'm trying to build a laptop of sorts. Long story... but I want to be able to have the same type of battery setup. I need between 14 and 24V from a multi-cell lipo pack but I want it to act just like a laptop battery would. Plug in the power adapter and it powers the whole thing plus charges the batteries. Unplug it and it automatically switches to battery power. I've seen a lot of battery management boards for charging multi-cell lipo packs (in series) but they all seem to be for charging the battery without any external load. So how do I even do that? Preferably is there some sort of pre-existing board I can use for this?
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\$\begingroup\$ Take a look at What kind of power management circuit do I need to embedded a rechargeable battery in my electronics project? \$\endgroup\$– FinbarrNov 2, 2017 at 17:35
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\$\begingroup\$ That's not for multi-cell. Or for nearly the power draw I'll need. Will be up to 150W. \$\endgroup\$– Adam HaileNov 3, 2017 at 2:22
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\$\begingroup\$ It was to illustrate the principle of combining battery charging with switching between power sources. Shouldn't be hard to substitute one of the multi cell charger designs into it. \$\endgroup\$– FinbarrNov 3, 2017 at 8:21
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