BATTERIES

Why the internal battery matters

Every tracker has a limited internal battery life, and it degrades with age and charge cycles, same as any lithium cell. A weak battery does not usually stop the tracker from working on main power, but it shortens or eliminates the window where the device can still send a position and an alert after power loss. For anti-theft use cases, this window is often the whole point of the installation, so a tired battery quietly removes the protection you think you have.

Fleet managers who installed trackers years ago and are now seeing gaps in reporting after power disconnects, or devices that go silent immediately when a vehicle is towed, are typically dealing with a battery nearing end of life rather than a faulty GPS unit.

How to choose the right battery

The deciding factor is compatibility with the exact tracker model, not capacity alone. Teltonika devices use specific connectors and board footprints, and a battery built for one FMB or FMC series model will not necessarily fit another. Matching by model, not just by voltage, avoids wasted purchases.

• Check the tracker model and series before ordering, since connectors differ between families.
• Capacity (mAh / Wh) affects how long the device can operate and report without external power.
• Smaller capacity cells suit compact trackers with limited internal space.
• Higher capacity cells suit devices expected to hold position reporting for longer after disconnection.

We list batteries sized for small form-factor trackers as well as higher-capacity options such as the 1800mAh cell, for installs where backup runtime after power loss is a priority.

Installation and replacement

Replacing a tracker battery is a straightforward job for an installer, usually done by opening the device enclosure, disconnecting the old cell, and fitting the matching replacement. It does not require re-configuring the tracker's settings or its connection to the platform, since the battery is a physical component independent of the SIM and software setup. We recommend replacement as preventive maintenance on older installs rather than waiting for a full failure, particularly on vehicles where anti-theft reporting is the main reason the tracker was installed.

Subscription and platform

Battery replacement does not affect your subscription or platform access. The tracker continues reporting through our platform and apps using its existing SIM and configuration once the new battery is fitted. If you are asking whether a tracker can work without a subscription: the hardware and battery will power the device, but without an active SIM and platform subscription there is no live tracking, no alerts, and no history, since those depend on the data connection, not on the internal battery.

Frequently asked questions

How do I know which battery fits my Teltonika tracker?

Match it to the exact model and series of your device, since connectors and board layouts differ between families. If you are unsure, tell us the tracker model and we can confirm the correct battery.

How long does a GPS tracker battery last?

Internal batteries typically last a few years of normal charge cycles before capacity drops noticeably. Signs of a weak battery include short or missing reporting after the vehicle's power is disconnected.

Can I replace the battery myself?

It is a simple replacement for anyone comfortable opening the device casing, but we recommend it be done carefully to avoid damaging the connector. Installers can do this quickly as part of routine maintenance.

Does changing the battery affect my tracking data or settings?

No. The battery is separate from the SIM, configuration, and platform connection, so replacing it does not affect your tracking history or subscription.