What replacement battery fits the Aventon Soltera 2.5 / SR?

The Aventon Soltera 2.5 / SR uses a 48V Reention Dorado-style pack. Match voltage, case length and discharge connector to your original — and check whether your bike uses a smart BMS, which requires an OEM-compatible pack.

What voltage is the Aventon Soltera 2.5 / SR battery?

48 volts, verified across manufacturer specs and multiple replacement listings.

Aventon Soltera 2.5 / SR Replacement Battery — Which One Fits?

Find your version

last verified Jun 2026

36V

Soltera 2.5 / SR

~2024+ · removable downtube

verified · length: measure

Voltage

36 V

Capacity

~360 Wh

Case

Reention Black Eagle

Length

measure — varies

Discharge

match yours

Charge

DC barrel

⚠Always measure your pack before buying. These cases come in more than one length, and a wrong length will not seat. Measure your original end-to-end and match the discharge connector before you buy.

Schematic of a Reention Black Eagle e-bike battery case showing where to measure length, the connector, the voltage and model label, and the charge port. — Where to measure and check on a Reention Black Eagle pack.

Also fits

Cross-compatible models SAME PACK

Aventon Soltera.2same Black Eagle family — confirm length

Aventon Soltera / Soltera 7same 36V Black Eagle case

Do not use these

⚠ Wrong-fit hazards

A 48V Dorado pack. Wrong voltage and case. Soltera is 36V Black Eagle.
Wrong length. Measure first — lengths vary across the Soltera line.
Integrated-battery confusion. Confirm yours is a removable downtube pack, not a frame-integrated one.

Where to buy

Affiliate disclosure: some links below are affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. We are not paid to recommend any specific battery.

Replacement packs

For: 36V Reention Black Eagle — measure length & match the connector

Amazon

multiple sellers · check current price & reviews

Check price →

eBay

new & refurbished

Check price →

How this was verified

Sourcing. Specs for the Aventon Soltera 2.5 / SR were cross-checked across manufacturer specifications, multiple independent replacement-battery listings, and first-hand owner reports on e-bike forums. Items marked "measure," "verify," or "check" depend on your specific unit and are not safe to assume.

verified — multi-sourceconfirm on your pack

⚠Lithium batteries can be dangerous if mismatched. This is sourced reference data with confidence levels, not a fitment guarantee. Confirm voltage, length, connector and BMS type against your own pack, and buy from a reputable seller. Read the safety guide →

Own one of these?

Help keep this page accurate. If you've replaced the battery on your Aventon Soltera 2.5 / SR, tell us what actually fit — your exact length, connector, or model year. We review every owner report and merge confirmed ones.

Owner reports are reviewed before any page is updated. Thanks for helping keep this accurate.

Which replacement battery fits a Aventon Soltera 2.5 / SR?