Diagnostic Evaluation
$29
- Device inspection
- Battery health assessment
- Repair recommendation
- Written service findings
The diagnostic fee is credited toward the approved repair.
ULS Battery Revival™ for ForeFlight Sentry | Battery Cell Replacement Service
Diagnostic Evaluation
$29.99 USD
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ULS Battery Revival™ for ForeFlight Sentry | Battery Cell Replacement Service
$29.99 USD
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ULS Battery Revival™
ForeFlight Sentry Battery Replacement Service
Restore the battery life of your ForeFlight Sentry ADS-B receiver with professional internal battery replacement, functional testing, and final quality verification by United Lithium Solutions.
Professional Installation
Mail-In Service
Functional Testing
Fast Turnaround
Independent service disclosure:
United Lithium Solutions is an independent battery service provider and is
not affiliated with, authorized by, sponsored by, or endorsed by ForeFlight.
ForeFlight and Sentry are trademarks of their respective owners and are used
only to identify the devices serviced.
Choose Your Service Level
Select the option that best matches your device condition and preferred turnaround time.
Standard Replacement
$79
- New internal replacement battery
- Professional installation
- Internal inspection
- Charging verification
- Functional testing
- Final quality-control inspection
Standard turnaround: approximately 1–3 business days after receipt.
Priority Replacement
$119
- Everything in Standard Service
- Priority queue placement
- Expedited turnaround
- Detailed testing documentation
Priority turnaround: approximately 24–48 hours after receipt.
Common Battery Symptoms
This service may be appropriate when your Sentry experiences one or more of the following conditions.
Battery drains unusually quickly
Device only works while connected to power
Significantly reduced operating time
Charging or power-on issues
Unexpected shutdowns during use
Battery no longer holds a full charge
How the Mail-In Service Works
A straightforward process from checkout through tested return shipment.
Purchase Your Service
Select diagnostic, standard, or priority service through this page.
Ship Your Device
Send your ForeFlight Sentry to the ULS service facility in Las Vegas.
Battery Replacement
Our technicians inspect, service, and test the internal battery system.
Tested Return
Your serviced device is returned after charging and functional verification.
Turnaround Time
Standard Service:
Approximately 1–3 business days after the device is received.
Priority Service:
Approximately 24–48 hours after the device is received.
What We Verify
- Battery installation
- Charging response
- Device power operation
- Basic functional performance
- Final quality-control condition
Shipping responsibility:
The customer is responsible for shipping the device to and from the United
Lithium Solutions facility unless otherwise stated during checkout or in a
written service agreement. We recommend using tracked shipping.
Why Choose United Lithium Solutions?
Battery Specialists
ULS focuses on lithium battery diagnostics, testing, repair, replacement, and battery-system support.
Tested Before Return
Each serviced device undergoes charging and functional checks before it is approved for return shipment.
Replace Less. Restore More.
Battery replacement may extend the usable life of your existing device without requiring the purchase of an entirely new receiver.
Your Sentry. Repowered.
Select your service option above to begin the ULS Battery Revival™ process. After checkout, follow the provided mail-in instructions and ship your device using a trackable service.