The Ampsentrix Pro battery is designed to replace the battery in the Watch Series 4 40mm. It is a rechargeable lithium-ion battery with zero charge cycles and an OEM TI fuel gauge chip.
- Type: Lithium-ion
- Compatibility: Watch Series 4 40mm
- Charge cycles: Zero
- Chip: OEM TI Gas Gauge Chip
- Rechargeable: Yes
- Included: Pre-installed battery adhesive strip
- Environmental feature: Eco-friendly