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Samsung 25R 18650 2500mAh 10C 20A Battery

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Price range: $4.39 through $6.69

💡 Pro Tip: First 50g air shipping is $7.00 — ordering 6+ cells slashes your shipping cost per cell by over 70%!

ModelINR18650-25R
Voltage3.6V nominal
Capacity2,500mAh nominal
ChemistryLithium-ion (NCA)
Discharge20A maximum continuous at 25°C
Built for dependable high-drain performance.
  • 2,500mAh nominal capacity with up to 20A continuous discharge.
  • Designed for high-drain battery packs, power tools and mobility applications.
  • It is best used where current delivery matters more than maximum runtime per cell.

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SKU: Samsung 25R 18650 Categories: , Tag: Brand:
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Description

 

Samsung INR18650-25R 2500mAh High-Drain Lithium-Ion Battery Cell

Brand-New Genuine Samsung 25R Cell
High-performance 18650 lithium-ion battery designed for high-drain battery packs and power applications.

  • Model: Samsung INR18650-25R
  • Standard Capacity: 2500mAh
  • Minimum Capacity: 2400mAh
  • Nominal Voltage: 3.6V
  • Standard Charging Voltage: 4.20 ± 0.05V
  • Maximum Charging Voltage: 4.25V
  • Discharge Cut-Off Voltage: 2.5V
  • Max. Continuous Charging Current: 4A
  • Max. Continuous Discharge Current: 20A
  • Weight: Approx. 45g
  • Charging Temperature: 0°C to +45°C
  • Discharging Temperature: -20°C to +60°C
  • Maximum Cell Surface Temperature: Charging 60°C / Discharging 80°C
  • Dimensions: 18.2mm (D) × 65.0mm (H)

Key Features: Genuine Samsung cell · 2500mAh capacity · High-drain performance · Low internal resistance · Reliable and stable power output

Suitable for: Battery packs, electric motorcycles, electric skateboards, power tools, drones and other high-power applications.

Package: 1 × Samsung INR18650-25R Battery Cell

Note: Prices shown are for one battery cell unless otherwise stated.

⚠️ IMPORTANT WARRANTY & DOA NOTICE (BARE CELLS & UAV BATTERIES)

Excluded from 12-Month Commercial Warranty — DOA Replacement Policy Only Bare lithium cells (non-resalable once altered) and UAV/drone battery packs (high-drain consumables with no guaranteed cycle lifespan) are excluded from our 12-month commercial warranty and are covered exclusively by our 30-Day DOA (Dead on Arrival) Policy:

  • Mandatory 14-Day Non-Destructive Inspection: You must test initial voltage and charging capability within 14 calendar days of receipt — BEFORE spot-welding/soldering (for bare cells) or mounting/flight use (for UAV packs).

  • Strictly Non-Returnable Once Altered or Used (100% Diminished Value): Non-destructive multimeter/charger testing is the only permitted inspection upon delivery. Bare cells that have been spot-welded, soldered, glued, or assembled (becoming inseparably mixed with other components), and UAV packs that have been mounted, flown, cycled, or over-discharged, suffer a 100% loss in resale value and are strictly ineligible for returns, withdrawal refunds, or replacements.

  • DOA Qualification & Remedy: Only items arriving with zero/abnormally low voltage, severe initial cell imbalance, or unable to accept a charge qualify as DOA (multimeter/charger photo or video proof required). Batteries with normal measurable voltage that charge properly upon arrival are not defective. Verified DOA claims qualify for free replacement only with shipping covered by MIBANG (unless a replacement is unavailable or otherwise required by mandatory local law).

By placing an order, you confirm device compatibility, agree to test all items prior to welding, assembly, or flight, and accept our full Return & Warranty Policy (without affecting non-excludable statutory consumer rights).

ModelINR18650-25R
Voltage3.6V nominal
Capacity2,500mAh nominal
ChemistryLithium-ion (NCA)
Discharge20A maximum continuous at 25°C
Weight0.050 kg
Dimensions200 × 150 × 100 mm

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PRODUCT SUPPORT

Frequently Asked Questions

What is the capacity of the Samsung 25R?+

The Samsung product specification lists 2500mAh minimum standard discharge capacity and 2450mAh minimum rated discharge capacity at 10A.

What is the discharge rating?+

The maximum continuous discharge rating is 20A at room temperature. Samsung characterization material also includes higher-current test points, but those are not the primary continuous product rating.

Can the Samsung 25R be used in battery packs?+

Yes. It is widely used in custom 18650 packs where current capability matters, but packs must use matched cells, proper welding, insulation, fusing, BMS protection, and thermal validation.

What charger should be used?+

Use a lithium-ion charger or BMS using a CC-CV profile to 4.20V per cell. Standard charge is 1.25A; rated charge is 4A.

What is the discharge cut-off voltage?+

The Samsung product specification uses 2.50V as the end-of-discharge voltage. Some systems may use a higher cut-off to reduce stress and improve service life.

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