
Secondary Battery Samsung Galaxy Z Fold8 Ultra (Service Pack)
Original manufacturer secondary battery for Samsung Galaxy Z Fold8 Ultra, supplied in Service Pack. This battery is tested and validated according to Samsung's official technical specifications, guaranteeing complete compatibility and performance identical to the factory part. It bears the safety markings and unique identification codes of the manufacturer, ensuring its full traceability.
Designed to preserve the initial energy performance of your device, this original part limits the risk of failure after intervention and fully maintains manufacturer warranty. Each component has been checked according to Samsung's strict criteria before shipment. 2 year warranty.
Galaxy Z Fold8 Ultra Secondary Battery: Features and Compatibility
The Samsung Galaxy Z Fold8 Ultra Secondary Battery is an original manufacturer part supplied as a Service Pack. Designed for model F976B, it reproduces exactly the specifications of the battery installed at the factory, guaranteeing perfect integration and performance identical to a new device. The manufacturer reference is GH82-39897A / EB-BF977DAE, which you can verify on your old part before ordering to confirm compatibility.
When to Replace the Secondary Battery
The Galaxy Z Fold8 Ultra has two batteries, one in each panel. The secondary battery, installed on the outer panel, wears like any lithium battery: after two or three years of heavy use, capacity decreases, charge lasts less long, and battery life in folded mode drops dramatically. If the outer panel drains two or three times faster than the inner panel, or if the battery swells (indicated by a screen that lifts), replacement becomes urgent.
Why Choose an Original Manufacturer Battery
A compatible generic battery costs less, but it never delivers the reliability of an original part. Samsung Service Pack batteries come directly from production lines and meet the same specifications as those integrated at the factory. They maintain the charging curves, protections against overcharge and overheating, and above all, pairing with the device's battery controller. An incompatible or altered battery risks premature capacity withdrawal, or even malfunction of the phone's thermal management system.
Package Contents and Installation
The battery is supplied with its pre-applied double-sided adhesive, ready for attachment to the panel. No additional tools are included: installation requires a standard opening kit (spudger, suction cup, thin spatula) to open the case, remove the old battery and attach the new one. Power connection is made by connector, not by soldering. Allow 20 to 30 minutes for an experienced technician. Without experience, have the task performed by a specialized workshop to ensure no short circuit and no damage to the phone's power system.
Warranty and Traceability
This battery comes with a 2-year warranty. It bears official Samsung safety markings, a unique identification code, and is traceable with the manufacturer. The Service Pack packaging seal ensures no parts were replaced before delivery: you receive the battery exactly as it leaves the factory, with all its protection systems intact.
Compatible Only with Galaxy Z Fold8 Ultra
This secondary battery is designed exclusively for the Samsung Galaxy Z Fold8 Ultra (model F976B). It is not compatible with other Galaxy Z models: Z Fold7, Z Fold6, Z Flip8 or other variants. Check the model code on your device before ordering, or consult our product sheets dedicated to other models in the range.







