Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The SRAM eTap AXS battery is the removable lithium-ion power pack that snaps onto SRAM's wireless eTap and AXS derailleurs and shifters. It is the same pack across the road, gravel and mountain AXS lines, so one spare fits every component in a mixed setup. It charges off the SRAM charger and swaps in seconds, which is why riders carry a spare on long rides. Against wired electronic groupsets it wins on simplicity and field repair; the trade-off is that each derailleur needs its own pack, so a bike carries two.
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Store links may earn us a commission. Some prices via Klarna.
Lowest price we've seen: $57.82 on Nov 8 at Steepandcheap. Tracked across 5 stores since Nov 8.
Owners treat the AXS battery as a reliable consumable: it clicks in firmly, holds charge through wet rides and is easy to carry as a spare. Complaints center on needing one per derailleur and on the dedicated charger rather than any failure in use.