00:00If you've ever cracked open a power tool battery pack, built a DIY power bank,
00:04or just wanted to keep a pile of 18,650 cells alive without setting your desk on fire,
00:09this one's for you. I went digging through thousands of reviews and orders to find the
00:145 best 18,650 chargers and protection boards you can actually buy right now, and honestly,
00:20some of these prices are almost silly. Let's get into it.
00:24First up is this 3S20A BMS protection board, and this thing is the go-to for anyone
00:29rebuilding a cordless drill pack. It handles 3 cells in series at 12.6V, and that 20A rating
00:36means it can take the punch of a motor pulling hard under load without tripping out. It's got
00:41overcharge, over-discharge, and short-circuit protection all built in. The wild part?
00:47It starts at just 90 cents. Nearly 5,000 sold with a 4.8 rating, for under a dollar,
00:54there's really no reason not to grab a few spares. Next, the TP4057 charging board,
01:00and this is the one I'd point most people toward if you're still using old TP4056 modules.
01:06The 4057 chip runs cooler, has better current regulation, and it comes with a modern USB type
01:12C port, so you can charge it off the same cable as your phone. 1-amp charging with full protection
01:17built onto the board. You get 5 of them for $3.46, which works out to about 70 cents each.
01:25It's rated 4.9 stars, and it's a genuine upgrade over the older chip for basically the same money.
01:31Now if you're already deep in the TP4056 world, this classic module is still worth a look,
01:37mainly because you get to choose your connector. Micro USB, Type-C, or Mini-USB, whatever matches
01:43the rest of your gear. It's the dual-function version, meaning it charges and protects,
01:48so your cell won't get over-discharged when your project's sitting idle. $2.82 for a multi-pack,
01:554.8 stars, nearly 5,000 sold. This is the module that's powered about a million weekend projects,
02:01and for good reason. Number 4 is the most flexible one on the list, a BMS board that comes in
02:071S,
02:082S, 3S, 4S, and 5S configurations, with 10-amp or 25-amp options depending on what you pick.
02:15So whether you're building a single-cell light, a 2S RC pack, or a 5S e-bike style build,
02:20there's a version here that fits. Balance charging, over-current cutoff, the whole package.
02:27$2.81, 4.9 stars. If you tinker with different battery setups,
02:32just buy a couple in the sizes you use most and stop ordering one at a time.
02:37And finally, if you don't want to build anything at all, this dual-slot 18650 charger just works.
02:44Drop in one or two cells, plug it in, and it handles the 4.2-volt cutoff for you.
02:50It's great for flashlight cells, laser modules, or just topping off spares before a trip and the
02:55two independent slots mean you can charge mismatched cells without worrying.
02:59$4.24, 4.9 stars from over 4,500 buyers. Honestly, every 18650 user should own one of
03:08these as a baseline. All five links are down in the description,
03:12so go check the current prices, they move around a lot.
03:15If this helped you out, hit that like button and subscribe for more tiny electronics deals like
03:20these. Thanks for watching, and I'll catch you in the next one.
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