Description
TL-5186WR RTC Battery for AST AT&T NCR
The TL-5186WR RTC Battery is a replacement 3.6V 370mAh lithium backup battery used in selected AST, AT&T, and NCR systems. This battery is commonly used as a real-time clock (RTC) or CMOS memory battery to help preserve stored settings and time/date information when the main device is powered down.
If your original battery is labeled TL-5186WR, this replacement is intended to match the same core battery designation. Because many legacy systems use similar backup batteries, always confirm the part number, connector style, wire orientation, and physical layout before purchase.
Key Features
- Replacement for TL-5186WR
- Used in selected AST, AT&T, and NCR applications
- 3.6 Volt output
- 370mAh capacity
- Lithium chemistry
- Designed for RTC / CMOS backup functions
- Supports legacy equipment maintenance and repair
Applications
This battery is typically used in legacy electronic systems requiring an RTC or CMOS backup battery, including certain:
- AST systems
- AT&T systems
- NCR systems
Why Replace the RTC Battery?
A weak or failed RTC battery can cause loss of clock settings, BIOS memory retention issues, and repeated date/time resets. Replacing the correct backup battery can help restore reliable memory retention in older equipment.
Compatibility Note
Please match your existing battery’s TL-5186WR part number and compare the connector and wiring before ordering. Legacy devices may require an exact physical match even when voltage and capacity are the same.
Frequently Asked Questions
What is the TL-5186WR battery?
The TL-5186WR is a 3.6V 370mAh lithium RTC battery used in selected AST, AT&T, and NCR systems for backup clock and memory support.
What does an RTC battery do?
An RTC battery helps maintain the real-time clock and stored memory settings when the main device is turned off or disconnected from power.
Which systems use the TL-5186WR?
It is associated with selected AST, AT&T, and NCR applications. Exact compatibility should be confirmed by matching the original battery part number and connector.
What are the specifications of the TL-5186WR?
This battery is identified as 3.6 volts, 370mAh, and lithium chemistry.
How do I confirm compatibility?
Match the exact model number TL-5186WR and compare the connector, wiring, voltage, and physical size/layout with your original battery before ordering.
TL-5186WR battery
AST AT&T NCR RTC battery
3.6V 370mAh lithium RTC battery
CMOS battery TL-5186WR
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