The details
- The official source is Ride1Up's own parts store. The listing covers both the LMT'D V1 and the Core-5 because the two bikes share the same 48V Reention EEL battery case, and Ride1Up states it fits the existing Core-5 without changes.
- Ride1Up's current replacement pack uses name-brand cells and is sold at 14Ah capacity. If your original pack was a lower capacity, the replacement still fits the same bay and gives you more range.
- The Core-5 was sold across several model years and in step-over and step-through frames. The battery interface stayed in the Reention EEL family, but confirm your pack's case label before ordering, especially on early bikes.
- Because Reention is a case standard used across many brands, third-party 48V EEL packs from Amazon, eBay, and battery specialists also physically fit, with varying cell quality.
How to confirm what you have
Pull the battery and look at the label and the case shape. You are checking three things: the case family (EEL, printed on the case or identifiable by its long slim downtube profile with the charge port and lock on the lower face), the voltage (the Core-5 is a 48V system, and the label should say so), and the connector at the base. If your label is worn off, your order confirmation or Ride1Up support can confirm the spec from your serial number. Do not order on capacity alone: a 48V pack in the wrong Reention case will not seat on the bike's cradle.
What owners actually do
The consensus in the Ride1Up owner community is to buy from Ride1Up first while the pack is still stocked, because you get a warranty, known cell quality, and a pack tested against the Core-5's controller. Owners go third-party mainly when the official pack is out of stock or when they want a higher capacity than Ride1Up offers. With third-party packs, owners favor listings that name the Core-5 explicitly and specify brand-name cells, and they keep the original Ride1Up charger only if the replacement pack's documentation approves it: otherwise use the charger the pack ships with.
The discontinued-bike angle
The Core-5 is listed as discontinued on Ride1Up's site, which is exactly why it is worth acting while the OEM pack is still in the parts store. Discontinued-model parts tend to disappear without notice. If your current battery is healthy but aging, some owners buy a spare now and store it at partial charge in a cool place. And because the case is a common Reention standard rather than a proprietary one-off, the Core-5 will remain serviceable through the third-party market long after Ride1Up stops stocking it, which is a better long-term position than most proprietary-battery e-bikes.