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Cameron Sino 361-00026-00 Battery for Forerunner 205/305/305i 700mAh 3.7V
Replacement lithium-ion battery for Garmin Forerunner 205, 305 and 305i GPS units, 700mAh at 3.7V
- Specifications38.90 x 34.25 x 5.50
- Battery Pack38.90 x 34.25 x 5.50
- Battery Capacity700.00 milliamp_hours
- Battery Voltage3.7 volts
- Compatible with Forerunner 205, 305 and 305i GPS units
- 700 mAh capacity delivers 2.59 Wh of energy
- 7 V lithium-ion cell matches original voltage
- Compact 38.90 x 34.25 x 5.50 mm form factor fits factory bay
- Certified to ISO 9001, RoHS and CE standards
Compatible replacement battery
This 700 mAh lithium-ion cell fits Garmin Forerunner 205, 305 and 305i GPS units. It matches the original 3.7 V specification and the 38.90 x 34.25 x 5.50 mm form factor. The pack weighs 14 g and carries ISO 9001, RoHS and CE certification.
Fully decoded chip and protection
A new fully decoded chip makes the battery communicate with the watch exactly like the factory unit. Built-in circuitry guards against overcharge, over-discharge, over-voltage and short circuits. The retail box includes shock-absorbing foam for safe transport.
Capacity and practical limits
The 2.59 Wh rating restores typical training-session runtime for the supported models. It is not suited for devices that require higher capacity or a different voltage. Users needing multi-day ultra-endurance logging should verify the original battery’s endurance first.
Highlights
- Compatible with Forerunner 205, 305 and 305i GPS units
- 700 mAh capacity delivers 2.59 Wh of energy
- 7 V lithium-ion cell matches original voltage
- Compact 38.90 x 34.25 x 5.50 mm form factor fits factory bay
- Certified to ISO 9001, RoHS and CE standards
Specifications
| Brand | Cameron Sino |
|---|---|
| Model | forerunner 205, forerunner 305, forerunner 305i |
| Part Number | 361-00026-00 |
| Specifications | 38.90 x 34.25 x 5.50 |
| Battery Pack | 38.90 x 34.25 x 5.50 |
| Battery Capacity | 700.00 milliamp_hours |
| Battery Voltage | 3.7 volts |
Questions about this item
How many charge cycles before the 700mAh 3.7V lithium-ion cell needs replacement?
The battery reaches best performance after two or three full charge and discharge cycles and is designed to last through many further cycles before capacity drops enough to require replacement.
What limits runtime first during continuous GPS use on a Forerunner 205, 305 or 305i?
The 700mAh 2.59Wh capacity sets the energy ceiling, so sustained GPS tracking will drain the pack until the built-in protection circuit cuts power to prevent over-discharge.
How warm does the 38.90 x 34.25 x 5.50 mm pack get when the navigator runs all day?
Normal operation stays well below the 60 °C storage limit; the protection circuitry guards against over-voltage and short-circuit heating during extended use.
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