External Battery for Microsoft Surface Pro 3 & Surface Pro 4
This pocket-sized external battery pack delivers high capacity power specifically for the Microsoft Surface Pro 3 and Surface Pro 4. Offering 20,000mAh (74Wh), it recharges quickly in under two hours with the included AC charger. Connectivity is versatile, featuring two USB-C ports and one USB-A port, plus a special cable for stable 12V DC output. You can simultaneously charge your device while recharging the battery pack. It also supports wireless charging for compatible smartphones, making it an essential, multi-functional power solution for mobile professionals.
$139.95
Owner Satisfaction
4.2
/ 5
Category Rank
1495
/ 1957
#1495 in Power Adapter & Charger Accessories
Price vs Category Average
+66%
Above average
Capacity
200003.774
/ ,mAh @V or Wh
Who it's for
- Massive Runtime Extension
- Direct Surface Compatibility
- Multi-Device Charging
Who should skip it
- Significant Bulk and Weight
- High Price Point
- Limited Model Compatibility
Key Specs
Capacity
20,000mAh @3.7V or 74Wh
Type-C1 Output
PD 100W (5V, 9V, 12V, 15V, 20V)
Type-C2 Output
PD 45W (5V, 9V, 12V, 15V, 20V)
USB Output A
QC 18W
Total Max Output Power
145W
Dimensions
6" x 3" x 1"
Weight
1 lb.
Certifications
RoHS compliant
Features
- High capacity 74Wh power bank
- Fully recharges in under 2 hours
- Includes special 12V DC output cable
- Supports simultaneous charging and discharging
- Features wireless charging capability
- Built-in battery level gauge
- Includes comprehensive protection circuits
- Two USB-C ports and one USB-A port
What customers say
This external battery is highly valued for its specialized utility and substantial capacity, solving the critical need for extended Surface Pro 3 and 4 runtime via the proprietary connector. Users frequently describe it as essential for mobile productivity, confirming it delivers multiple full charges, transforming the device into an all-day workstation. The build quality inspires confidence in its reliability. While the unit is robust, its premium cost and physical size are noted drawbacks impacting portability. Despite these trade-offs, satisfaction remains high for users prioritizing dependable, high-volume power for their specific Surface models.
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