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Black rectangular lithium-ion camera battery with smooth finish

Cameron & Co

Cameron & Co DS-CS-BLM1 camera battery 7.4V 1500mAh

SKU CH-Z2WQ-DNKQE

Lithium-ion camera battery delivering 7.4 V and 1500 mAh for Olympus E‑3, E‑300, E‑330, E‑500, E‑510 and E‑520 models

  • Product typeBattery
  • Ready for Olympus E-3, E-300, E-330, E-500, E-510, E-520
  • Powers C-7070, C-8080, C-5060 Wide Zoom models
  • Replaces BLM-1 and PS-BLM1 original batteries
  • 4 V 1500 mAh Li-ion cell delivers 1.5 Ah
  • Compact 55.00 × 39.10 × 21.60 mm black pack

Replacement battery for Olympus Evolt

The Cameron & Co DS-CS-BLM1 is a lithium-ion battery rated at 7.4V and 1500mAh, matching the BLM-1 and PS-BLM1 part numbers. It is intended for photographers who need a fresh power source for compatible Olympus Evolt E-3, E-300, E-330, E-500, E-510 and E-520 bodies, as well as Camedia C-7070, C-8080 and C-5060 Wide Zoom cameras. The cell is supplied new and black.

Fits directly into the camera battery compartment

No external charger or adapter is required beyond the standard Olympus charger already used with the original BLM-1 pack. The 55.00 x 39.10 x 21.60 mm form factor slides into the same slot, freeing the user from carrying bulky grip extensions or proprietary power packs. Buyers who need to power non-Olympus bodies or who require a built-in USB charging port will not be served by this unit.

Delivers steady output for extended shooting

The 1.5 Ah lithium-ion chemistry maintains consistent voltage through long bursts of still capture or video recording on supported Evolt and Camedia models. It avoids the rapid voltage sag seen in aged or lower-capacity packs when the camera draws peak current for autofocus and image stabilisation. Users who demand hot-swap capability or dual-battery grip operation should look elsewhere.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-BLM1
Product typeBattery

Questions about this item

How long can the 1500 mAh capacity sustain continuous shooting before the battery needs recharging?

The 1.5 Ah rating delivers roughly one full charge cycle per session; actual runtime depends on the camera model and usage pattern.

Does the Li-ion cell run hot or draw extra power during all-day use in an Olympus E-520?

Normal operating temperature is typical for 7.4 V Li-ion packs; no abnormal heat or power draw is reported for the listed Olympus bodies.

Which Olympus camera must I already own for this BLM-1 replacement to fit and communicate correctly?

Compatible models include C-7070, C-8080, C-5060, E-3, E-300, E-330, E-500, E-510 and E-520.

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