NETGEAR Nighthawk M6 Add-On Battery for MR6150/MR6550

Compact, rechargeable 5185mAh lithium-ion battery designed to extend the run time of NETGEAR Nighthawk M6 (MR6150, MR6550) mobile routers for all-day use.

The NETGEAR Nighthawk M6 Add-On Battery (W20) is a purpose-built replacement and backup cell engineered to pair with M6 mobile hotspots. Lightweight and pocket-friendly, it gives you extended connectivity when you're away from a wall outlet or need uninterrupted mobile internet during travel, remote work, or outdoor activities. It installs easily into the M6 chassis and is backed by NETGEAR's 1-year limited warranty for use in the United States and Canada.

How much extra runtime does this battery provide for my M6 router?

The W20 battery has a 5185mAh lithium-ion capacity, designed to significantly increase the operating time of compatible M6 devices. Actual runtime depends on signal strength, connected devices, and usage, but the higher capacity aims to support all-day use under typical conditions.

• 5185mAh capacity for extended session lengths
• Optimized for M6 (MR6150, MR6550) power profiles
• Supports multiple connected devices without rapid drain

Is this battery easy to install and carry on the go?

Yes — the battery is slim and lightweight so it snaps into the M6 housing for a clean fit. Its compact dimensions make it convenient to stash in a bag or pocket when you travel, and recharging is straightforward with the router's charging procedure.

• Tool-free installation: slides into the router compartment
• Compact form factor for travel and commuting
• Rechargeable via the M6's existing charging port

Will this work with all NETGEAR devices and where is it supported?

The W20 battery is specifically designed for the Nighthawk M6 family and is compatible with MR6150 and MR6550 models. It is not a universal battery and should be used only with supported M6 routers. The product is intended for sale and use in the United States and Canada.

• Compatible models: MR6150 and MR6550
• Not a universal replacement for other NETGEAR routers
• Made for use in the US & Canada, per compatibility notes

What support and warranty come with the battery?

NETGEAR covers the W20 battery with a 1-year limited warranty that addresses manufacturing defects and workmanship. For best results follow NETGEAR's charging and storage recommendations to maintain battery longevity.

• 1-year limited warranty from NETGEAR
• Manufacturer support for installation and compatibility questions
• Guidance available for safe charging and storage

Who this is for: The NETGEAR Nighthawk M6 Add-On Battery is a practical upgrade for travelers, field workers, remote students, and anyone who relies on an M6 mobile hotspot for extended periods without easy access to power. If you own an MR6150 or MR6550 and need a reliable backup or replacement power source that fits the original design, this rechargeable 5185mAh pack delivers a compact, dependable solution.