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Rectangular black lithium-polymer battery with rounded corners, 111.66 by 56.86 by 3.40 mm

Cameron & Co

Cameron & Co DS-CS-BRZ300XL 2.8 Ah cell phone battery

SKU CH-AZ2R-40NKG MPN DS-CS-BRZ300XL

Lithium-polymer replacement battery delivers 2.8 Ah capacity for Blackberry A10, Aristo, Leap and Z30 models

  • Fits Blackberry A10 Leap and Z30 models
  • Replaces OEM part numbers BAT-50136-001 and CUWV1
  • 8 Ah Li-Polymer cell powers the phone longer
  • Slim 3.40 mm profile fits the original compartment
  • Brand new condition ensures full 2800 mAh capacity

Replacement battery for Blackberry A10 and Leap

This Cameron & Co DS-CS-BRZ300XL lithium-polymer cell restores power to compatible Blackberry handsets including the A10 Aristo, Leap and STA100 series. It matches the original BAT-50136 and CUWV1 part numbers and supplies a 3.8 V, 2.8 Ah rating. The unit is new and 100 % OEM compatible.

Thermal behaviour and power delivery

The Li-Polymer chemistry maintains stable voltage during normal discharge without generating excess heat in the handset. Internal resistance stays low so the phone draws current efficiently and the battery does not warm noticeably during typical daily use. No active cooling is required.

Included hardware and fit

The package contains one black battery measuring 111.66 x 56.86 x 3.40 mm, ready to install without extra tools or adapters. No cables, chargers or software are bundled. The slim profile matches the original compartment so the back cover closes flush.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 60% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-BRZ300XL

Questions about this item

How do I install the DS-CS-BRZ300XL in my Blackberry A10, and what step do people often miss?

Power off the phone, remove the back cover, disconnect the old battery connector, fit the new 111.66 x 56.86 x 3.40 mm Li-Polymer cell, reconnect the connector securely, replace the cover, then charge to 100 % before first use — the step most skipped is that initial full charge.

What maintenance or replacement will the DS-CS-BRZ300XL need over time?

As a 2.8 Ah Li-Polymer battery it requires no scheduled maintenance; expect gradual capacity loss after several hundred charge cycles, at which point the only remedy is to replace the cell with another compatible 3.8 V 2800 mAh unit.

What limit appears first when I use the DS-CS-BRZ300XL heavily for long periods?

Sustained high drain will hit the 10.64 Wh energy capacity first, causing the phone to shut down once the 3.8 V cell voltage drops to its low-cut threshold.

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