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FYIOGXG Replacement Battery for AirSep Freestyle 3, Portable Oxyg, Freestyle 5 3600mAh 14.8V
Replacement nickel-zinc battery delivers 3600mAh at 14.8V for AirSep Freestyle 3, Portable Oxyg and Freestyle 5 portable oxygen concentrators
- Specifications1
- Typenickel_zinc
- Battery Pack1
- Battery Typenickel_zinc
- Battery Capacity3600 milliamp_hours
- Battery Voltage14.8 volts
- 3600 mAh capacity powers portable oxygen concentrators longer
- 8 V nickel-zinc chemistry matches original AirSep specifications
- 40 x 50.70 x 24.60 mm form factor fits Freestyle 3 and Freestyle 5
- 0 g weight keeps the device light for mobile use
- Built-in protection guards against overcharge, over-discharge and short circuits
Replacement Battery for AirSep Freestyle
This nickel-zinc replacement battery fits AirSep Freestyle 3, Freestyle Portable Oxyg and Freestyle 5 portable oxygen concentrators. It delivers 3600mAh capacity at 14.8 volts and matches the original BT015-1 and BT018-1S part numbers. The pack measures 136.40 x 50.70 x 24.60mm and weighs 314.0g.
Ready-to-use pack with protection circuit
The unit ships as a single battery pack with a fully decoded chip that communicates with the concentrator exactly like the original. Built-in safeguards guard against overcharge, over-discharge, over-voltage and short-circuit conditions. Shock-absorbing foam in the package protects the cells during transit.
Straightforward swap with common pitfalls
Installation videos are widely available online and the physical swap is simple, but the connector must be seated firmly or the device will not recognise the pack. A new battery reaches full runtime after two or three complete charge and discharge cycles. Using a low-quality third-party charger can reduce overall service life.
Highlights
- 3600 mAh capacity powers portable oxygen concentrators longer
- 8 V nickel-zinc chemistry matches original AirSep specifications
- 40 x 50.70 x 24.60 mm form factor fits Freestyle 3 and Freestyle 5
- 0 g weight keeps the device light for mobile use
- Built-in protection guards against overcharge, over-discharge and short circuits
Specifications
| Brand | FYIOGXG |
|---|---|
| Model | Replacement battery |
| Specifications | 1 |
| Type | nickel_zinc |
| Battery Pack | 1 |
| Battery Type | nickel_zinc |
| Battery Capacity | 3600 milliamp_hours |
| Battery Voltage | 14.8 volts |
Questions about this item
How often will the nickel-zinc battery need to be replaced with daily charging?
A new nickel-zinc battery reaches peak performance after 2 or 3 full charge cycles and should be replaced when run-time drops below your clinical needs.
What limits continuous operation of the 3600 mAh pack on a Freestyle 5?
The 53.28 Wh capacity sets the run-time ceiling; the pack stops delivering power when the built-in protection triggers on over-discharge or over-voltage.
How much heat does the 14.8 V battery generate during all-day indoor use?
Normal operation stays well below the 60 °C storage limit; the nickel-zinc chemistry and protection circuit keep temperature rise modest during continuous discharge.
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