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New BA820 8200mAh 31.16Wh 3.8V Li-ion Battery for UniStrong UG908 UG905 Replaces BA840 High Capacity for Field Work Grade A Cells
- Massive 8200mAh Capacity Stay Powered All Day in the Field Stop worrying about your handheld GIS or data collector dying midsurvey. This BA820 replacement delivers a true 8200mAh / 31.16Wh enough for a full shift of GPS mapping, data logging, or asset tracking.
- Exact Fit for UniStrong UG908 & UG905 Compatible with UniStrong UG908 (using BA820 or BA840) and UG905 handhelds. Replaces OEM battery model BA820. Direct swap no modifications needed.
- 3.8V Li-ion Reliable Power for Rugged Environments Designed for the power demands of professional GNSS receivers. No more unexpected shutdowns at 30% or performance drops when youre miles from a charger.
- Premium Grade A Cells True Capacity, Not a Cheap Knockoff Unlike generic batteries that swell or lose capacity after a few months, our BA820 uses brand new Grade A cells. You get consistent voltage, long cycle life, and safe operation in extreme conditions.
- Safe & 100% Tested Builtin overcurrent, overvoltage, overheating, and shortcircuit protection. Each unit tested before shipping. Backed by 30day money return and 12month warranty.
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Overview
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Why You Need a HighCapacity Battery for Your UniStrong UG908/UG905
Your UniStrong UG908 or UG905 handheld GNSS receiver is a critical tool for surveying, GIS data collection, forestry, utilities, and construction. But when the original battery starts to fail, you face constant recharging, work interruptions, or the device shutting down just when youve locked onto a signal. Worse, cheap replacement batteries often advertise high capacity but deliver half the runtime and they can swell or overheat in the field.
This BA820 battery solves that problem delivering true 8200mAh / 31.16W h capacity with brand new Grade A Liion cells.
Designed for UniStrong UG908 & UG905
This battery is a direct fit for:
UniStrong UG908 (models using BA820 or BA840)
UniStrong UG905
Important: Please verify that your original battery is the BA820 or BA840 series. This battery is designed specifically for these two handheld models not for older UniStrong devices (like UG801, UG903) without checking physical dimensions.
Specification Detail
Model BA820
Chemistry Liion
Voltage 3.8V
Capacity 8200mAh / 31.16W h (true capacity)
Condition Brand new Grade A cells
What a Cheap or Failing Battery Costs You
Interrupted field work Device dies during a critical survey or asset collection.
Reduced accuracy Sudden shutdown can corrupt data or force you to redo work.
Swelling A bulging battery can crack the battery door or damage the device.
Fake capacity Many 8200mAh batteries actually contain 50006000mAh cells.
What Our Battery Delivers
Feature Cheap Generic Our HighCapacity Battery
True Capacity Often 50006000mAh 8200mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Runtime (continuous GPS) 68 hours 1214+ hours
Swelling Risk High within months Low, proper BMS
Warranty None or 30 days 30day return + 12 months
Who Is This Battery For?
Surveyors who need allday battery life for field mapping.
GIS technicians collecting data in remote areas.
Forestry, utility, or construction crews working long shifts.
Anyone who relies on their UG908/UG905 and wants to avoid midday charging.
Safety & Reliability
Every battery includes builtin protection against overcurrent, overvoltage, overheating, and short circuits. Grade A Liion cells ensure consistent power delivery. We test each unit before shipping.
Easy Installation
Turn off your UG908/UG905, open the battery compartment (usually a sliding latch), remove the old battery, and insert the new BA820. Fully charge before first use for optimal performance.
Whats Included
1 x BA820 Replacement Battery (8200mAh / 31.16W h)
Before You Order
Please doublecheck your original battery model (BA820 or BA840) and your handheld device (UniStrong UG908 or UG905). This battery is not compatible with UG801, UG903, or other brands (Trimble, Eos, etc. ). If your device uses a BA840 battery, this BA820 is a direct replacement with the same physical size and connector.
Your UniStrong UG908 or UG905 handheld GNSS receiver is a critical tool for surveying, GIS data collection, forestry, utilities, and construction. But when the original battery starts to fail, you face constant recharging, work interruptions, or the device shutting down just when youve locked onto a signal. Worse, cheap replacement batteries often advertise high capacity but deliver half the runtime and they can swell or overheat in the field.
This BA820 battery solves that problem delivering true 8200mAh / 31.16W h capacity with brand new Grade A Liion cells.
Designed for UniStrong UG908 & UG905
This battery is a direct fit for:
UniStrong UG908 (models using BA820 or BA840)
UniStrong UG905
Important: Please verify that your original battery is the BA820 or BA840 series. This battery is designed specifically for these two handheld models not for older UniStrong devices (like UG801, UG903) without checking physical dimensions.
Specifications
You Can TrustSpecification Detail
Model BA820
Chemistry Liion
Voltage 3.8V
Capacity 8200mAh / 31.16W h (true capacity)
Condition Brand new Grade A cells
What a Cheap or Failing Battery Costs You
Interrupted field work Device dies during a critical survey or asset collection.
Reduced accuracy Sudden shutdown can corrupt data or force you to redo work.
Swelling A bulging battery can crack the battery door or damage the device.
Fake capacity Many 8200mAh batteries actually contain 50006000mAh cells.
What Our Battery Delivers
Feature Cheap Generic Our HighCapacity Battery
True Capacity Often 50006000mAh 8200mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Runtime (continuous GPS) 68 hours 1214+ hours
Swelling Risk High within months Low, proper BMS
Warranty None or 30 days 30day return + 12 months
Who Is This Battery For?
Surveyors who need allday battery life for field mapping.
GIS technicians collecting data in remote areas.
Forestry, utility, or construction crews working long shifts.
Anyone who relies on their UG908/UG905 and wants to avoid midday charging.
Safety & Reliability
Every battery includes builtin protection against overcurrent, overvoltage, overheating, and short circuits. Grade A Liion cells ensure consistent power delivery. We test each unit before shipping.
Easy Installation
Turn off your UG908/UG905, open the battery compartment (usually a sliding latch), remove the old battery, and insert the new BA820. Fully charge before first use for optimal performance.
Whats Included
1 x BA820 Replacement Battery (8200mAh / 31.16W h)
Before You Order
Please doublecheck your original battery model (BA820 or BA840) and your handheld device (UniStrong UG908 or UG905). This battery is not compatible with UG801, UG903, or other brands (Trimble, Eos, etc. ). If your device uses a BA840 battery, this BA820 is a direct replacement with the same physical size and connector.
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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