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New W-6 4020mAh 14.88Wh Battery for NETGEAR AirCard 781S AT&T Unite Pro Replaces 5200080 Grade A Cells 12-Month Warranty
- High-Capacity 4020mAh Up to 16 Hours of Use This W-6 replacement battery delivers 4020mAh / 14.88Wh of reliable power for your NETGEAR AirCard 781S or AT&T Unite Pro hotspot. Stay connected through long workdays, travel, or remote locations without constantly searching for a charger.
- Exact Fit for AirCard 781S & AT&T Unite Pro Compatible with NETGEAR AirCard 781S, AT&T Unite Pro, AT&T Unite Pro 4G LTE, and NETGEAR Around Town 4G LTE (AC778AT-100NAS). Replaces OEM part numbers W-6 and 5200080. Direct dropin replacement no modifications needed.
- Premium Grade A Li-ion Cells Built to Last Manufactured with high-quality Grade A cells, not recycled or lowgrade. Builtin overvoltage, undervoltage, and shortcircuit protection. No memory effect charge anytime without capacity loss. Rated for extended cycle life.
- Compact & TravelReady Design Dimensions: 77.30 x 55.00 x 9.60mm. Lightweight and portable perfect for carrying a spare battery for extended trips. CE, RoHS, and UL certified for safety and reliability.
- 100% Tested & 12-Month Warranty Each battery is individually tested before shipment to ensure quality and performance. Backed by a full 12month warranty and 30day moneyback guarantee. Brand new, never used, not refurbished.
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Why You Need This Battery
Your NETGEAR AirCard 781S or AT&T Unite Pro mobile hotspot is your lifeline to the internet when you're on the road, at a job site, or traveling abroad. With up to 16 hours of continuous use on a full charge, this hotspot is designed to keep you connected all day. When the original battery starts to fail shorter runtime, unexpected shutdowns, or no longer holding a charge your connectivity suffers. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.
This W-6 battery solves that problem delivering true 4020mAh / 14.88W h capacity with brand new Grade A Li-ion cells. What you see is what you get.
Important NETGEAR Compatibility
This battery is a direct fit for the following models. Use Ctrl+F to search for your specific model:
Category Compatible Models
NETGEAR AirCard Series AirCard 781S
AT&T Series Unite Pro, Unite Pro 4G LTE
NETGEAR Around Town AC778AT-100NAS
Replaces OEM Part Numbers:
Common P/N
W-6
5200080
AT&T W-6
Specification Detail
Model W-6
Chemistry Li-ion
Voltage 3.7V
Capacity 4020mAh / 14.88W h
Dimensions 77.30 × 55.00 × 9.60 mm
Color Black
Runtime Up to 16 hours continuous use
Condition Brand new Grade A cells
Warranty 30day moneyback + 12month warranty
What a Cheap or Failing Battery Costs You
Interrupted connectivity Hotspot dies during important work or travel.
Fake capacity Cheap batteries claim 4020mAh but deliver much less.
Swelling Dangerous bulging that can crack the battery cover.
Short lifespan Lowgrade cells fail within months.
What Our Battery Delivers
Feature Cheap Generic Our Premium Battery
True Capacity Often under 3500mAh (fake label) 4020mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Runtime (continuous use) 68 hours 1416 hours
Safety Standards None CE, RoHS, UL
Warranty None or 30 days 30day return + 12month
Who Is This Battery For?
NETGEAR AirCard 781S hotspot owners who need reliable power.
AT&T Unite Pro and Unite Pro 4G LTE users.
Frequent travelers who want a spare battery ready for extended trips.
Anyone whose original hotspot battery is swollen or no longer holds a charge.
Why Choose Our Battery?
Genuine Grade A Li-ion cells Not recycled or refurbished.
Exact OEM specifications Matches NETGEAR's original 4020mAh / 3.7V design.
Advanced safety protection Overcharge, overdischarge, shortcircuit, and overtemperature protection built in.
No memory effect Charge anytime without capacity loss.
100% tested Each unit is tested for capacity and cycle life before shipping.
12month warranty Buy with confidence. If anything goes wrong, we've got you covered.
Installation Note
To replace the battery:
Turn off your hotspot device.
Open the battery cover by lifting at the notch above either external antenna port.
Remove the old battery and insert the new W-6 battery, ensuring the gold contacts line up with the gold contacts on the device.
Replace the cover and fully charge before first use.
Important Usage Tips
Avoid high temperatures Heat is the battery killer and can cause failure.
Don't fully drain Avoid letting the battery drop below 2% to prevent wear.
Use correct charger An improper power adapter may damage the battery.
Longterm storage If not using for a long time, charge to 80% and store in a cool, dry place.
What's Included
1 x W-6 Replacement Battery (4020mAh / 14.88W h)
Your NETGEAR AirCard 781S or AT&T Unite Pro mobile hotspot is your lifeline to the internet when you're on the road, at a job site, or traveling abroad. With up to 16 hours of continuous use on a full charge, this hotspot is designed to keep you connected all day. When the original battery starts to fail shorter runtime, unexpected shutdowns, or no longer holding a charge your connectivity suffers. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.
This W-6 battery solves that problem delivering true 4020mAh / 14.88W h capacity with brand new Grade A Li-ion cells. What you see is what you get.
Important NETGEAR Compatibility
This battery is a direct fit for the following models. Use Ctrl+F to search for your specific model:
Category Compatible Models
NETGEAR AirCard Series AirCard 781S
AT&T Series Unite Pro, Unite Pro 4G LTE
NETGEAR Around Town AC778AT-100NAS
Replaces OEM Part Numbers:
Common P/N
W-6
5200080
AT&T W-6
Specifications
You Can TrustSpecification Detail
Model W-6
Chemistry Li-ion
Voltage 3.7V
Capacity 4020mAh / 14.88W h
Dimensions 77.30 × 55.00 × 9.60 mm
Color Black
Runtime Up to 16 hours continuous use
Condition Brand new Grade A cells
Warranty 30day moneyback + 12month warranty
What a Cheap or Failing Battery Costs You
Interrupted connectivity Hotspot dies during important work or travel.
Fake capacity Cheap batteries claim 4020mAh but deliver much less.
Swelling Dangerous bulging that can crack the battery cover.
Short lifespan Lowgrade cells fail within months.
What Our Battery Delivers
Feature Cheap Generic Our Premium Battery
True Capacity Often under 3500mAh (fake label) 4020mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Runtime (continuous use) 68 hours 1416 hours
Safety Standards None CE, RoHS, UL
Warranty None or 30 days 30day return + 12month
Who Is This Battery For?
NETGEAR AirCard 781S hotspot owners who need reliable power.
AT&T Unite Pro and Unite Pro 4G LTE users.
Frequent travelers who want a spare battery ready for extended trips.
Anyone whose original hotspot battery is swollen or no longer holds a charge.
Why Choose Our Battery?
Genuine Grade A Li-ion cells Not recycled or refurbished.
Exact OEM specifications Matches NETGEAR's original 4020mAh / 3.7V design.
Advanced safety protection Overcharge, overdischarge, shortcircuit, and overtemperature protection built in.
No memory effect Charge anytime without capacity loss.
100% tested Each unit is tested for capacity and cycle life before shipping.
12month warranty Buy with confidence. If anything goes wrong, we've got you covered.
Installation Note
To replace the battery:
Turn off your hotspot device.
Open the battery cover by lifting at the notch above either external antenna port.
Remove the old battery and insert the new W-6 battery, ensuring the gold contacts line up with the gold contacts on the device.
Replace the cover and fully charge before first use.
Important Usage Tips
Avoid high temperatures Heat is the battery killer and can cause failure.
Don't fully drain Avoid letting the battery drop below 2% to prevent wear.
Use correct charger An improper power adapter may damage the battery.
Longterm storage If not using for a long time, charge to 80% and store in a cool, dry place.
What's Included
1 x W-6 Replacement Battery (4020mAh / 14.88W h)
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Ebuy limited Return Policy
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