Let me make sure I've understood, because there are two ways to read this. Your 2019 Levo Comp battery is electrically fine, but the
brass bolt (the threaded contact stud on the battery's positive terminal lid) has torn out — and you want to source a replacement lid/terminal cap so the battery is usable again. A "dead" battery is just a convenient donor for that part. Spot on as a plan, that's exactly how plenty of people do it.
A few things worth flagging on the 2019 (Gen 1) pack specifically:
Mind the recall. First-gen Levo/Kenevo battery packs had a recall issued
30 August 2022 —
@Zimmerframe documented it here. So before you go buying a salvage pack as a donor, it's worth checking whether yours (or any donor) is a recalled unit, because a recalled "dead" battery may be replaceable by Specialized rather than scrap.
→ Zimmerframe on the Gen 1 recall
The brass bolt is a known maintenance point. @Mikerb's routine on the 2019/2020 pack is to clean and grease that brass bolt and pop a sponge into the hollow centre for moisture protection — which tells you the stud is a serviceable item that does work loose / corrode / strip over time. If yours has torn the threads out of the housing rather than just stripping the bolt, then yes — a donor lid is the fix.
→ Mikerb's battery bolt maintenance
Sourcing the donor:
• A scrap/dead Gen 1 Levo OR Kenevo 460/500/504Wh pack from the same era will share the lid — the recalled first-gen packs are exactly the units floating about cheap as "dead".
• eBay UK and the for-sale section here are your best bet; ask the seller for a photo of the terminal end so you confirm the lid and brass stud are intact before money changes hands.
• A Specialized dealer can also order the terminal cap as a spare — worth a five-minute call before buying a whole donor pack.
One caution: that bolt carries the full motor current, so whatever lid you fit, get the contact clean, torqued and greased per Mikerb's method — Specialized use Nyogel on the Rosenberger seals (non-conductive, keep it off the contacts themselves). A poor connection there shows up later as cut-outs under load, which is a miserable thing to chase.
If you can tell me the exact Wh printed on your pack (460 / 500 / 504), I'll narrow down which donors match.