00:00So you're building a Lefapio 4 battery pack and you're wondering, do busbars balance your cells, or is that the
00:05BMS's job?
00:07Quick answer, it's the BMS.
00:10Busbars just carry current.
00:12But you still need good ones, and I dug up 5 solid deals so you don't have to.
00:17First up, this 4-pack of 73mm pitch busbars with screw 6 terminals.
00:23The flexible copper braid is the real star, it soaks up vibration and terminal misalignment, so you're not stressing your
00:29cell posts on an EV, solar, or marine build.
00:331224 gets you 4 of them.
00:36Nearly 5,000 sold, 4.8 stars.
00:39Hard to argue with that.
00:41Number 2 is the same idea but cheaper.
00:4574mm pitch, rated for 300 Ampere-hour cells, and you pick how many you need 1, 2, 3, or 4
00:52pieces.
00:53$5.91 each, which is the cheapest copper on this list per unit.
00:58The 4.9 rating from over 4,600 buyers says it holds up just fine.
01:03Great pick for a first DIY pack.
01:06Third, the Termra Flexible Busbar hole-to-hole 56mm, 2mm thick copper, and a 400 Amp rating.
01:14This one's built for the big boys, 280 Ampere-hours and 320 Ampere-hours cells, and it works across 12,
01:2124, and 48-volt setups.
01:24$8 and change for that kind of current headroom is honestly ridiculous.
01:28Same 4.9 rating, over 4,000 sold.
01:32Fourth is the most flexible option, literally.
01:36You get 300 or 200 Amp versions, 56 or 74mm spacing, plus straps, clips, and studs, all pure copper.
01:45At 7.17, you can match it to whatever cell layout you're running.
01:49And it's the only one on this list with a perfect 5.0 rating.
01:54Enough said.
01:55Last one ties this whole video together, a Termra 12V DIY kit with an empty battery box, a busbar, and
02:02a 100 Amp BMS for 4CATL 120 Ampere-hours cells.
02:06Remember, the BMS is what actually balances your cells.
02:116032 gets you the box, the copper, and the balancing brain in one shot.
02:16Perfect lead acid replacement starter.
02:19Links to everything are down in the description.
02:22If this cleared up the busbar vs BMS confusion for you, hit like, subscribe, and I'll see you in the
02:28next build.
