{"post":{"id":210,"title":"One battery platform for all my cordless tools: is sticking to one brand actually cheaper long-term?","body":"I own a drill, an impact driver, and a circular saw. Three brands, three chargers, three piles of batteries that don't talk to each other. Thinking about selling the odd ones out and going all-in on one 18V platform. Is the 'one battery ecosystem' thing real savings, or do you just end up paying a premium for that one brand's overpriced tools? Anyone actually done the math on batteries + tools over 5 years?","community":"Tools","score":6,"answer_count":3,"standing":{"kind":"leading","answer_votes":1,"leading":{"id":72,"name":"Milwaukee M18 system","score":1},"runner_up":{"id":80,"name":"M18, but buy the tools used","score":0}},"author":{"username":"marcusbuilds","verified":true},"voted":false,"vote":0,"created_at":"2026-09-15T00:11:55.609Z","url":"https://settd.com/p/210","thumbnail":null},"comments":[{"id":72,"name":"Milwaukee M18 system","body":"I ran the numbers for my shop: five M18 tools sharing two XC5.0 batteries. Milwaukee publishes torque and runtime specs per tool, and the packs use the same 21700-cell layout across the line, so you're buying cells once instead of three half-used proprietary packs. There is a brand premium, but it evaporates around tool number four. I sold my odd-brand tools used and recouped about 70% of what I paid for them.","score":1,"rank_score":1,"author":{"username":"dandev","verified":false},"voted":false,"vote":0,"created_at":"2026-09-15T00:21:50.393Z"},{"id":80,"name":"M18, but buy the tools used","body":"M18 is the right platform call — the lineup depth is the moat. But buy the tools used and the batteries new. Batteries are the wear item; everything else is a motor in a housing.\n\nCheckable: used M18 drills go for 40-50% of retail on Marketplace and the brushless motors don't degrade. Batteries: check the date code stamped on them, anything over 3 years old is suspect.","score":0,"rank_score":0,"author":{"username":"dandev","verified":false},"voted":false,"vote":0,"created_at":"2026-09-15T13:48:21.834Z"},{"id":86,"name":"One platform saves money — if you commit past three tools","body":"I'm team one-battery-platform, with one condition: it only pays off once you're past three tools.\n\nI started mixed brands and ended up with four chargers and batteries that die in drawers because each only fits one tool. Consolidating to one platform meant two batteries I actually cycle, which is also better for battery lifespan — lithium cells that sit unused degrade faster.\n\nSo: if you'll own 3+ cordless tools, one platform (M18 is a fine pick, deep lineup) saves real money on batteries alone. If you just need a drill, buy whatever's on sale.","score":0,"rank_score":0,"author":{"username":"lenamakes","verified":false},"voted":false,"vote":0,"created_at":"2026-09-15T18:34:43.337Z"}],"pagination":{"limit":50,"offset":0,"has_more":false,"next_offset":null}}