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Small rectangular battery pack with wire connector, dark shrink-wrap finish, 61.70 x 31.00 x 10.50mm

Cameron Sino Battery for Lexus 89040-53011/12 IS200/IS300 Siren 300mAh 7.2V

SKU CH-85KS-E6BWY

Replacement siren alarm battery for Lexus IS200 and IS300 models, 300mAh 7.2V with ISO9001, RoHS and CE certification

  • Weight66g
  • Direct replacement for Lexus 89040-53011 and 89040-53012 siren alarms
  • 300 mAh capacity at 7.2 V delivers 2.16 Wh for reliable backup power
  • Nickel-zinc chemistry meets ISO 9001, RoHS and CE safety standards
  • Compact 61.70 × 31.00 × 10.50 mm form fits factory housing precisely
  • Built-in protection guards against overcharge, over-discharge and short circuits

Direct-fit siren battery

This replacement cell matches Lexus part numbers 89040-53011 and 89040-53012 for IS200 and IS300 siren modules. It delivers 300 mAh capacity at 7.2 V for 2.16 Wh of energy storage. The nickel-zinc chemistry unit weighs 66 g and measures 61.70 x 31.00 x 10.50 mm. A decoded chip ensures the vehicle recognises it as the original equipment.

Interface and installation limits

The battery connects through the factory siren connector; no adapter or wiring changes are required. Installation videos are widely available online, but the pack must be seated with the connector fully engaged. Do not expose the cell to temperatures above 60 °C (140 °F) and never disassemble or dispose of it in fire or water. A low-quality charger will shorten service life.

Capacity decides fit

The 300 mAh / 2.16 Wh rating is the single figure that determines whether this unit powers your specific siren module correctly. Verify the original battery shows the same capacity and voltage before ordering. Buyers whose alarm system demands a higher milliamp-hour rating cannot use this cell.

Highlights

  • Direct replacement for Lexus 89040-53011 and 89040-53012 siren alarms
  • 300 mAh capacity at 7.2 V delivers 2.16 Wh for reliable backup power
  • Nickel-zinc chemistry meets ISO 9001, RoHS and CE safety standards
  • Compact 61.70 × 31.00 × 10.50 mm form fits factory housing precisely
  • Built-in protection guards against overcharge, over-discharge and short circuits

Specifications

Brandcameron sino
Weight66g

Questions about this item

Which Lexus part numbers does this 300mAh 7.2V battery replace?

It replaces Lexus part numbers 89040-53011 and 89040-53012, and fits IS200, IS200 Siren, and IS300 Siren models with part number 28AAAM6BML.

What runtime does the 2.16Wh capacity provide for the siren alarm?

The 300mAh 7.2V nickel-zinc cell delivers 2.16Wh, designed to match the original siren alarm battery specifications for backup power duration.

How does the 7.2V nominal voltage affect compatibility with the vehicle's siren system?

The 7.2V output matches the original specification exactly, ensuring the siren alarm receives the correct voltage for proper operation and monitoring.

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