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4iiii PRECISION Replacement Battery Door
August 19, 2025$14.99
Replacement battery door for your 4iiii PRECISION 2 or PRECISION 3 power meter
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4iiii PRECISION Replacement Battery Door
The 4iiii PRECISION Replacement Battery Door is a direct replacement for the original battery door that came with your 4iiii PRECISION power meter.
Note – New o-ring included with PRECISION 2 Doors for Left Crank Arm only (this is how the manufacturer ships these).
4 reviews for 4iiii PRECISION Replacement Battery Door
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Ben (verified owner) –
Perfect fit, super fast delivery.
Travis Cogan (verified owner) –
The product itself is perfect. Its exactly what you need. The unfortunate part is that the O-ring fails and you have to replace the entire cap. I have replaced mine twice now and the price is crazy high for such a tiny piece of plastic. No fault of Power Meter City. I am extremely grateful they carry the part and ship it so quickly. 5 STARS for Power Meter City. A little less to 4iiii for their pricing of a product they know is gonna need to be replaced often and not offering the O-ring that fails
Power Meter City –
Hi Travis! Thank you so much for the 5 stars and your honest feedback! We’re glad we could get the part to you quickly, though we definitely understand the frustration with the design and cost. We’ll continue doing our best to keep these parts in stock and get them out fast when needed! Ride safe!
Mike Hoffman (verified owner) –
Product was as advertised, high quality and worked perfectly. Nice to have a resource for these small but critical parts.
Power Meter City –
Thank you for this kind review Mike! We are here if there is anything else we can do! Ride safe!
Mike W (verified owner) –
So good to get support on these replacement parts and at a good price. Prompt dispatch although in the Covid crisis the delivery to the UK was 5 weeks
Power Meter City –
Hi Mike. Thank you for this review! It’s great that it was delivered to you in 5 weeks as we are seeing lots of shipment delays due to COVID-19 lately. Please let us know if there is anything else we can do!