Is a high-mileage used Lightning a bad idea because of battery costs?

I've been running a 2022 Lightning as my daily since it had about 80k on the clock, so I can give you the practical picture. Full pack replacement is not the only path anymore, but it depends heavily on who does the work. Ford dealers mostly quote a whole pack because that's the only repair procedure they're set up for. The pack itself is built in sections, and an independent EV shop can swap a bad section instead of the whole thing, assuming they can source the part. That's where salvage comes in. Rear-ended Lightnings with perfectly good packs are showing up at dismantlers now, and the prices are a fraction of what a dealer wants for new. The catch is the truck's battery management system keeps a history of the pack, so a used one ussually needs programming to play nice. Budget for that even if the salvage pack itself is cheap. That cheap out-of-warranty repair you read about was almost certainly a used or salvage pack, not fresh cells from Ford.

On the towing question, a small trailer a few times a month is honestly not a big deal. What wears packs faster is heat and DC fast charging under load, so if you're Supercharging between job sites every day in summer, that's diferent. A few monthly tows plus home charging overnight is pretty gentle in the grand scheme.

Before you buy one with high miles, get the battery health test run at a dealer. It reads the actual capacity the pack has left, and it's cheap compared to buying a truck with a tired pack. Also check wether any of the 8 year battery warranty is still transferable, since some of those high mileage trucks might still be covered depending on the in-service date.

The realistic failure mode is gradual range loss, not sudden death. These packs mostly fade slowly and keep working. The horror stories get posted because they're rare.

That's kind of reassuring to hear. I always assumed one bad part meant the whole thing was toast, like how I figured out laptop batteries the hard way. So the truck battery is more like a bunch of smaller chunks wired togather and you just swap the bad chunk? Also does cold weather mess with these at all? I'm up north and my gas truck allready hates January, no idea if the electric ones care or not.

I bought a high mileage EV pickup last year and the thing that saved me was a cheap bluetooth OBD dongle and a battery monitoring app. Plugged it in during the test drive and coud see each group's voltage right there on my phone. Seller swore the pack was fine, numbers showed one section sagging, walked away from that one and found a cleaner truck a week later. Took me ten minutes and about twenty bucks. Beats trusting a used car salesman's word on the most expensive part of the truck.

This whole battery panic feels like deja vu. Back when the first Priuses started hitting 15 years old, everyone swore the packs were disposable and owners would be crushed by replacement costs. Then the salvage yards filled up with wrecks, guys figured out how to swap bad sticks with a multimeter and an afternoon, and the doom talk died off. Same script playing out again, just with bigger bolts.

The real bottleneck isn't parts, it's finding a shop that's done one before. Call around and ask how many packs they've actually opened, not what they charge. A shop doing its first one will learn on your dime.

Update: took the dongle tip from the guy who checks cell voltages during test drives. Found a 2023 Lightning with 90k miles nearby and the seller actually let me plug in while it charged. Numbers looked even across the board, which surprised me for the mileage. Still curious how bad cold winters hit these packs since nobody covered that part yet. Might put an offer in this week.