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Rectangular black lithium-polymer phone battery with gold contacts

Cameron & Co

Cameron & Co DS-CS-ERT300SL cell phone battery 1.78 Ah

SKU CH-12X2-4ZZW3 MPN DS-CS-ERT300SL

Replacement Li-Polymer battery for Sony Ericsson Xperia T series, 1.78 Ah capacity

  • Replaces Sony Ericsson Xperia T battery
  • 78 Ah capacity powers your phone
  • Li-Polymer chemistry in black finish
  • Matches part numbers 1257-1456 and 1261-4505
  • Slim 4.96 mm profile fits device

Compatible Sony Ericsson replacement

This Cameron & Co DS-CS-ERT300SL lithium-polymer cell replaces the original battery in Sony Ericsson LT30a, LT30AT, LT30i, Mint, Xperia T, Xperia T LT30p and Xperia TL models. It matches OEM part numbers 1257-1456, 1257-1456.1B, 1261-4505, 1261-4505.1A and LIS1499ERPC. The 1.78 Ah capacity restores factory runtime for daily use.

Simple swap with correct alignment

Installation requires opening the handset and disconnecting the old pack before fitting the new unit into the same cavity. The 53.47 x 52.77 x 4.96 mm form factor matches the original footprint, so no forcing is needed. Misaligned connectors or residual adhesive are the only common issues; clean the contacts and seat the battery flat to avoid them.

Steady output through a full day

The 3.7 V chemistry delivers 6.59 Wh of energy, supporting typical talk, messaging and standby cycles without a sharp voltage drop. Li-Polymer construction maintains consistent discharge until the low-battery threshold, so performance stays even from morning to evening. Heavy continuous loads such as prolonged GPS navigation will deplete the reserve faster than light intermittent use.

How it compares

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

Price $16.99
Pricier than about 65% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-ERT300SL

Questions about this item

How can I verify the battery is working correctly after installing it in my Xperia T?

After installation, the phone should power on and show a charge level; a full charge should deliver approximately 1.78 Ah at 3.7 V, matching the 1780 mAh rating.

What comes in the package and do I need any extra parts to fit it?

The box contains one black Li-Polymer battery measuring 53.47 x 52.77 x 4.96 mm; no additional components are required for installation.

Which version should I choose if my original battery is labelled 1257-1456 or LIS1499ERPC?

This DS-CS-ERT300SL replaces part numbers 1257-1456, 1257-1456.1B, 1261-4505, 1261-4505.1A and LIS1499ERPC, so it covers both labels.

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