Description
The Olight H35/H25 Replacement Battery 5200mAh for Headlamps is a high-capacity lithium-ion battery pack designed for the Olight H35 and H25 Wave headlamps, ideal for outdoor activities like camping and hiking. Its 5200mAh capacity powers the H35’s 1500-lumen output for up to 2.5 hours, ensuring reliable illumination during a night hike. With a 7.2V output, it offers long-lasting performance. Featuring a 1-year warranty, this battery suits campers, hikers, and headlamp users.
High-Capacity Power for Headlamps
The Olight H35/H25 Replacement Battery (OPB-H35/H25) is compatible with the Olight H35 and H25 Wave headlamps, known for their powerful outputs of 1500 lumens (H35) and 800 lumens (H25). It delivers a nominal voltage of 7.2V and a capacity of 5200mAh, providing extended runtimes, such as 2.5 hours on the H35’s Turbo mode or up to 60 hours on its lowest setting (150 lumens). The battery pack is rechargeable via a proprietary charger (not included), typically taking around 4 hours to fully charge, and features a built-in power indicator to monitor charge levels. Designed to be worn on a belt or backpack strap, it reduces head weight, enhancing comfort during prolonged use. This makes it a reliable choice for powering Olight headlamps, though its proprietary design limits its use to the H35 and H25 models.
Durable and Lightweight Design
The Olight H35/H25 Replacement Battery is built for durability, featuring a robust casing that protects against impacts and environmental factors, making it suitable for outdoor use in rugged conditions. It measures approximately 80mm x 50mm x 30mm and weighs around 150g, keeping the overall headlamp setup lightweight when paired with the H35 (total weight around 300g). The battery operates effectively in temperatures ranging from -20°C to 60°C, ensuring functionality in various environments, such as cold weather camping or hot climates. It offers a long service life, though some users have reported issues with the battery’s wire detaching after extended use, suggesting careful handling of the connection to the headlamp.
Designed for Outdoor and Tactical Use
The Olight H35/H25 Battery for Outdoor Use is tailored for the Olight H35 and H25 Wave headlamps, which are designed for outdoor activities like camping, hiking, caving, and tactical scenarios, offering outputs of 1500 lumens (H35) and 800 lumens (H25) with throws of 212m (H25). It can power the H35 for 2.5 hours on Turbo mode during a night hike, ensuring reliable illumination for trail navigation, or up to 24 hours on its lowest setting for extended use during emergencies. The battery’s external pack design allows it to be worn on a belt, reducing head weight and improving comfort, which is crucial for activities like mountaineering or search and rescue.
Key Features and Specs
- Type: Rechargeable Lithium-Ion Battery Pack
- Voltage: 7.2V
- Capacity: 5200mAh
- Compatibility: Olight H35 Wave, H25 Wave Headlamps
- Dimensions: 80mm x 50mm x 30mm
- Weight: 150g
- Operating Temperature: -20°C to 60°C
- Warranty: 1 Year
Package Contents
- Olight H35/H25 Replacement Battery (OPB-H35/H25)
- User Manual
Note: A charger is not included; use the proprietary charger for the H35/H25 headlamps. Handle the wire connection carefully to avoid detachment over time.

