Rollei SLX / Rolleiflex 6000 Series Battery Rebuild (Ni-Cd)

Service type: Battery repair & rebuild
Suitable for: Rolleiflex 6000 Series and Rollei SLX cameras using original Ni-Cd battery packs.  We can repair other battery types, please send us a photo.

Service description

Original Rollei SLX / Rolleiflex 6000-series battery packs are no longer manufactured, and reliable replacements are difficult to source.
This service rebuilds the original battery housing using new industrial-grade Ni-Cd cells, restoring correct operation under camera load.  We worked closely with a French battery supplier to source a cell match to the original.  Cells are spot welded, not soldered.

This service is suitable where a battery may still show a green or “charged” indicator on the charger but fails to power the camera.

12-month warranty. Excludes damage caused by over-charging, excessive charge/discharge cycles, or abnormal load conditions (e.g. repeated high-speed shutter use).

What we do

• Strip and inspect the original battery pack
• Replace cells with 8 × brand-new 1.2 V industrial Ni-Cd cells
• Upgrade capacity to 600 mAh (original approx. 500 mAh, ~16% increase)
• Rebuild and reassemble the original casing
• Capacity-test the completed pack under controlled discharge
• Product a engineers report showing discharged capacity.

Typical tested result: ~639 mAh delivered, discharged to ~8.9 V pack voltage.

Battery Cell – Technical Specs

• Chemistry: Rechargeable sealed Nickel–Cadmium (Ni-Cd)
• Nominal Voltage: 1.2 V
• Minimum Capacity: 600 mAh
• Weight: 15.2 g
• Internal Resistance: < 5 mΩ
• Service Life: > 500 cycles (IEC standard)

What this service is (and isn’t)

✔ Includes

• Full cell replacement (not reconditioning)
• Capacity verification on test equipment
• Electrical integrity check

✖ Does not include

• Camera repair or fault diagnosis
• Charger repair
• Conversion to alternative chemistries (Li-ion, NiMH, etc.)

Important notes

• This service requires your original battery pack to be supplied
• Cosmetic condition of the casing is retained as-is
• Ni-Cd chemistry is used to maintain compatibility with original chargers and camera electronics

Turnaround

Typically 5–7 working days from receipt, subject to workload.

How to book

Contact us before sending your battery so we can confirm compatibility and current lead time.  Then send your battery using a recorded or tracked service to SERVTEC, 159 Parkstone Avenue, Poole, BH149LP