Accessories › Power and access
Alkaline batteries, the right count
The single most common fix for a safe that will not open.
Watch outMakers advise replacing once a year whether or not the lock complains.
What to look for
- Alkaline, never rechargeable — lower cell voltage reproduces the fault
- The count your lock takes: an S&G 6120 uses two 9-volt cells, a LaGard Basic one
- A date written on the cell in marker
Specification
| Field | Value |
|---|---|
| What it is | 9 V alkaline, as many as the lock takes |
| Power | — |
| Price | not sold here — see below |
The problem it solves
Electronic locks fail on flat batteries far more often than on anything dramatic. Where this shows up →
Who makes this kind of thing inside the EU
- Burg-Wächter — “Security since 1920” by their own page title; broad range of locks and fittings
- Rottner Tresor — Runs its own shop with an accessories section
- BASI — Specialist in locking and security hardware
- Hartmann Tresore — Safes and the fittings that go inside them
- Wertheim — Austria; accessories for their own models
Listed because a supplier inside the EU already holds the product-safety paperwork and names a responsible person — which is why importing the same item directly would cost more in documents than in goods. Sites checked 2026-09-14.