4x Samsung 25R 18650 Battery 2500mAh – Tested w/ Case – Tools, Flashlight, DIY

This listing is for a 4-pack of genuine Samsung 25R INR18650-25R high-drain lithium-ion batteries. These are reclaimed cells, fully tested for performance, and rewrapped for clean, safe use. Each 4-pack comes in a clear protective storage case.

What’s Included:
• 4x Samsung 25R 18650 cells (tested and rewrapped)
• Installed high-temperature insulator rings (fish paper)
• Clear 4-slot plastic storage case

Cell Features:
• Tested capacity between 2300–2400mAh per cell
• Maximum continuous discharge: 20A
• Rewrapped in new heat shrink tubing
• Weld marks present on both ends from prior pack use
• Inspected and tested for capacity, voltage, and internal resistance

Specifications:
• Model: Samsung INR18650-25R
• Size: 18650 (18mm x 65mm)
• Nominal Voltage: 3.6V (4.2V full charge)
• Rated Capacity: 2500mAh
• Chemistry: INR (LiNiMnCoO2)
• Max Continuous Discharge: 20A

Applications:
• DIY battery packs (with proper BMS)
• Power tool battery rebuilds
• RC, Arduino, robotics, and electronics projects
• Flashlights, backup battery packs, e-bikes, and more

Important Safety Notice:

These are reclaimed lithium-ion cells and should only be handled by experienced users. Improper handling can lead to fire, injury, or damage.
• Do not short-circuit, crush, puncture, overcharge, or expose to heat
• Use only with a protection circuit or BMS
• Store in a fire-safe container or the included case when not in use
• Not intended for vape or e-cigarette use

Shipping:
• Ships from California
• Securely packaged in a clear plastic case with padding
• Fast handling time and tracking included

Please feel free to message with any questions or if you’re interested in bulk quantities.