SRAM RED eTap Battery 2-Pack for E-Bikes: Worth $117 in 2026?
The SRAM RED eTap Battery 2-Pack delivers two 7.4V, 24g lithium-ion cells for e-bikes and bicycles running SRAM electronic shifting systems. At $117, it is a premium-priced accessory best suited for SRAM AXS-equipped riders who need a backup battery on long e-bike commutes or trail rides.
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Best For
How this e-bike scores for different riding styles
This is a replacement battery accessory for SRAM electronic shifting systems, not an electric bike. It has no relevance to commuting use cases.
This product is a derailleur battery pack, not an e-bike. It cannot be used for off-road adventure riding.
This is a small battery accessory weighing 24g per unit, but it is not a portable e-bike and serves no transportation function.
This replacement battery is for electronic gear shifting components only. It is not suitable for any recreational riding use case.
This is a component accessory with no cargo capacity or utility transportation capabilities.
While this battery powers high-performance shifting systems, it is not an e-bike and has no motor or performance riding capabilities.
Our Verdict
The SRAM RED eTap Battery 2-Pack (model 2283510317) is a replacement power accessory for e-bikes and performance bicycles equipped with SRAM electronic shifting. Each 7.4V lithium-ion battery weighs 24 grams, adding negligible system weight to your e-bike drivetrain. The two-battery bundle targets riders who rely on SRAM eTap, AXS, Eagle AXS, or RockShox Reverb AXS components and need a spare charged cell ready for rides exceeding 40 hours of shift usage.
This is not an e-bike motor battery — the SRAM RED eTap cells power only the wireless derailleur and brake lever electronics, not the pedal-assist motor. Riders upgrading or maintaining a SRAM AXS-equipped electric bicycle will find the 2-year manufacturer warranty and dual-cell format a practical safeguard against mid-ride power loss in the shifting system.
At $117 for two cells, the SRAM 2283510317 sits at roughly 2x the cost of third-party eTap-compatible alternatives. For riders already invested in the SRAM ecosystem, OEM reliability and warranty coverage justify the price. Riders seeking e-bike motor range extension or propulsion components need a different product category entirely.
What We Like
- Each battery weighs just 24g, adding near-zero weight penalty to an e-bike drivetrain or performance build
- 7.4V lithium-ion chemistry delivers stable voltage output for consistent electronic shifting response across temperature ranges
- Two-pack format at $117 provides a spare cell, eliminating shifting failure risk on multi-hour e-bike commutes or trail rides
- Compatible with SRAM eTap, AXS, Eagle AXS, and RockShox Reverb AXS systems covering a broad range of e-bike builds
- 2-year manufacturer warranty covers defects, providing cost protection on a $58.50-per-cell investment
What Could Be Better
- At $117 for two cells, costs approximately 2x comparable third-party eTap-compatible battery alternatives on the market
- Powers only electronic shifting and brake components — does not extend e-bike motor range or pedal-assist performance
- No cross-brand compatibility: incompatible with Shimano Di2 or Campagnolo EPS electronic shifting found on some e-bikes
- No on-battery charge indicator — riders must use the SRAM AXS app to monitor the 7.4V cell charge level before a ride
- 35mAh capacity per cell limits shelf appeal for non-SRAM riders; zero value for e-bike motor, frame, or wheel upgrades
Standout Features
Frequently Asked Questions
Common questions aboutSRAM RED ETAP Battery 2-Pack Replacement Battery
Is this an electric bike?
No, this is a replacement battery for SRAM electronic shifting systems. It is not a bike.
What does this battery power?
This battery powers SRAM eTap and AXS wireless derailleurs and RockShox Reverb AXS seatposts. It does not power motors.
How much does each battery weigh?
Each battery weighs 24 grams. The two-pack includes two batteries totaling 48 grams.
What voltage do these batteries provide?
These are 7.4 volt lithium ion batteries designed for SRAM electronic components.
Does this come with a warranty?
Yes, SRAM provides a two year manufacturer warranty on these replacement batteries.
Best For
How this e-bike scores for different riding styles
This is a replacement battery accessory for SRAM electronic shifting systems, not an electric bike. It has no relevance to commuting use cases.
This product is a derailleur battery pack, not an e-bike. It cannot be used for off-road adventure riding.
This is a small battery accessory weighing 24g per unit, but it is not a portable e-bike and serves no transportation function.
This replacement battery is for electronic gear shifting components only. It is not suitable for any recreational riding use case.
This is a component accessory with no cargo capacity or utility transportation capabilities.
While this battery powers high-performance shifting systems, it is not an e-bike and has no motor or performance riding capabilities.
Scores
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