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Two rectangular lithium-ion camera batteries, matte finish, sold as a pair

Kastar

Kastar LI-42B 2-pack camera battery 1400mAh 3.7V 5.18Wh

SKU CH-63PD-MXCBA

Two 3.7 V 1400 mAh lithium-ion packs replace Sony VGP-BMS77 and SP60 mouse batteries with built-in protection circuits

  • TypeBattery
  • Pack2 Batteries
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions3*2*2 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 1400 mAh high-capacity cells
  • Safe operation backed by UL1642 and CE certified battery cells
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Two batteries in one pack keep a spare ready for extended use
  • Direct replacement for Sony VGP-BMS77, 4-268-590-02, SP60 and SP60BPRA9C models

Kastar LI-42B Twin Pack

This two-pack of Kastar LI-42B lithium-ion cells replaces the Sony VGP-BMS77 battery used in Bluetooth laser mouse models. Each unit delivers 3.7V and 1400mAh for a total energy rating of 5.18Wh. The pack suits users who want a ready spare without sourcing single units.

Sustained Output and Protection

Built-in circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating during extended use. The cells meet UL1642 and CE safety standards, so the pack maintains stable voltage across long sessions rather than fading after a short burst.

Check Your Mouse Model First

Verify that your device accepts the Sony 4-268-590-02, SP60 or SP60BPRA9C part numbers before ordering. This pack will not fit mice that require a different form factor or voltage. Buyers needing a charger or a different chemistry should look elsewhere.

Highlights

  • Longer shooting sessions with 1400 mAh high-capacity cells
  • Safe operation backed by UL1642 and CE certified battery cells
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Two batteries in one pack keep a spare ready for extended use
  • Direct replacement for Sony VGP-BMS77, 4-268-590-02, SP60 and SP60BPRA9C models

Specifications

BrandKastar
ModelLI-42B
Part NumberBA-2B-PS42B-S
TypeBattery
Pack2 Batteries
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions3*2*2 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

Does the 3.7 V 1400 mAh pack generate noticeable heat during extended use?

The lithium-ion cells include built-in over-heating protection and meet UL1642 and CE safety standards, so normal operation stays within safe temperature limits.

My mouse takes a VGP-BMS77 cell — is that the only thing I need to swap it in?

Yes, each pack contains two ready-to-install LI-42B batteries that directly replace the Sony VGP-BMS77, 4-268-590-02, SP60 and SP60BPRA9C cells.

Will these 5.18 Wh replacements work in my older Sony Bluetooth Laser Mouse without issues?

They are designed as direct replacements for the original VGP-BMS77 battery used in that mouse, matching the voltage and connector layout.

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