Look, the time comes, when you decide you have to climb out of the dark ages and get rid of your maglite, upgrade your charger and embrace the new batteries.
Those new batteries are 18650’s, 26650’s, rcr123’s, rcr2’s, as well as AA’s, & AAA’s. We’ve got GPS navigators, cameras, red dot sights, night vision, flashlights, bigger flashlights, radios & more, so get something that’s versatile.
This charger is the XSTAR VC4, it works great, I’m very pleased with it.
Even if you cheap out & go with the dirt cheap, shit, batteries as long as they are rechargeable and you have a good charger then you’re good to go.