For cyclists running SRAM AXS groupsets — whether mountain‑bike XX1 / X01 GX or road‑oriented Force, Red and Rival AXS — unreliable rear‑derailleur power can completely ruin a planned ride. Nothing is more frustrating than heading out for long‑distance gravel routes or weekend hill climbs only to face slow, inconsistent wireless shifting caused by an ageing, worn‑out battery. When your original unit loses capacity and fails to hold charge well, the M‑N25402 replacement battery delivers a practical, budget‑friendly fix without complicated bike‑shop labour. SRAM

This black replacement battery carries specifications of 7.4V, 800mAh /5.92Wh, engineered to fit directly inside the rear derailleur battery compartment for SRAM AXS series components. Installation is totally tool‑free; no cutting, drilling or frame modification is needed. Simply swap out your aged battery and lock the new unit in position, and your wireless shifting system restores steady, reliable power output for every gear change on trail or tarmac.

Built‑in multiple‑layer safety protection shields the lithium cell against common cycling hazards such as voltage spikes and over‑discharge, bringing you peace of mind even in variable outdoor weather. Its compact form matches the physical footprint of the original part, so it sits perfectly within the derailleur housing without loose fitting or rattling while you ride. Every single M‑N25402 battery undergoes quality checks before dispatch to rule out poorly‑calibrated generic cells that cause shifting lag or premature failure.

Priced at GBP 22.00, down from original retail price GBP 38.00, this SRAM‑compatible battery represents great value for UK cyclists. Orders are processed within 1‑2 business days, with typical delivery windows of 7‑20 business days across United Kingdom addresses. Should you encounter product‑related defects under normal usage and correct fitting, you will be covered by our full 1‑year warranty, alongside our standard 30‑day money‑back return policy. Remember to verify your original battery part number M‑N25402 before purchase to avoid ordering mismatched accessories.

Don’t let a dying derailleur battery hold back your cycling performance. Grab your SRAM AXS M‑N25402 replacement battery here:

https://uk-online.co.uk/M-N25402-battery-replacement-217864.html

Quick cycling tip for AXS battery care

After long muddy or wet rides, wipe the battery compartment contacts dry to prevent corrosion. Remove the battery if you plan to store your bicycle for weeks at a time. This small maintenance habit helps maximise the service life of your replacement battery and keeps your AXS shifting responsive for many rides ahead.

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Keep Your SRAM AXS Shifting Sharp With M‑N25402 Replacement Battery