The battery is the durability decision
Lumens are marketing. What decides whether a torch is still working in fifteen years is how it is powered, and there are three architectures.
Standard disposable cells (Maglite, D cells). Available everywhere, store for years, unaffected by cold. Heavy and low output by modern standards.
Dual fuel (Streamlight ProTac). Takes a rechargeable 18650 or disposable CR123A primaries. Never flat with no options, which is the one real problem with rechargeables.
Removable rechargeable cell (Fenix, 21700). The battery is a standard size and a consumable you replace forever. This is the best architecture for long-term ownership of a bright light.
Sealed built-in battery (Olight Warrior). Convenient, magnetically charged, and it has a finite cycle life that ends the torch - whatever the warranty says about the cell.
The warranties
Maglite: flashlights free from defects in parts and workmanship for the life of the original owner. Excludes battery exhaustion, battery leakage, lamp burnout, and damage from alteration, misuse, leakage or lack of maintenance.
Streamlight: a Limited Lifetime Warranty against defects for a lifetime of use, excluding batteries, bulbs, abuse and normal wear. Rechargeable batteries, chargers, switches and electronics carry two years with proof of purchase.
Fenix: a Limited Lifetime Warranty on products from certified retailers, with up to five years of free repair for manufacturing defects depending on the product.
Olight: a lifetime warranty on all flashlights, weapon lights, lanterns and built-in rechargeable batteries purchased after 2023.
Note Streamlight’s two-year electronics carve-out. It is the honest one: electronics and cells do not last a lifetime and a warranty that pretended otherwise would be worth less.
Maglite is the genuinely rebuildable one
O-rings, lenses, switches and lamp modules are all catalog parts. A thirty-year-old Maglite can be brought back to full function with a few dollars of components, and that is not true of any other torch here.
It is also heavy, long and modest in output. That is the trade, and for a torch that lives in a vehicle or a cupboard for emergencies it is the right one.
The drawer torch case
A SureFire G2X with CR123A primaries is the best thing to put in a drawer and forget. CR123A cells have a ten-year shelf life and do not self-discharge, so a torch stored for eight years is still a working torch.
A rechargeable left in a drawer for eight years is a paperweight. That is the single most underappreciated fact in flashlight buying.
The verdict
Fenix PD36R Pro for a daily-carry bright light you intend to own for fifteen years. The removable 21700 means the one genuine consumable is replaceable forever.
Streamlight ProTac if you want the dual-fuel safety net.
Maglite for the vehicle and the power cut, and because it can be rebuilt from parts indefinitely.
SureFire for the drawer you open once every few years and need it to work.
