That could work if you don't have corded drills or are in the hills and have no alternating current.

I've struggled with old drills and after market batteries and aging chargers. I've quit messing with that and just buy new Makitas instead. The 18 volt lithium fast charging small Makita (white casing) is appealing. Lightweight and 15 minute charge. Ryobi, Coleman, B&D, etc. are not worth the trouble for my snobbish ass. I use them at times when the client has one out. A shadow of Makita, Bosch, Hilti, or Milwaukee. My experience limited with the latter three but they seem to be adequate.

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1986 300SDL, 362K
1984 300D, 138K