Samsung ICR18650-28 18650 Lithium Ion Cells, 2800mAh Rated
Samsung ICR18650-28 18650 Lithium Ion Cells, 2800mAh Rated

Samsung ICR18650-28 18650 Lithium Ion Cells, 2800mAh Rated

We have 85 in stock.
Regular price$1.39
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These used Samsung 18650 lithium ion batteries were pulled from laptops and other low-drain devices. They are rated at 2800mAh, with a voltage range of 2.75 - 4.3v*. All of these cells have a capacity above 75%.

NOTE: We are only able to charge to 4.20v. Testing on similar cells higher-voltage cells has shown that the difference in capacity between 4.25v and 4.35v is approximately 10%. Our capacity percentage numbers reflect this.

These are used cells. They were charged to 4.2v, left to sit for at least one week, then discharge tested at 500mA. We may wrap cells in new heat shrink if the original wrapping was significantly damaged. These may still be delivered with adhesive or tape still attached, or damaged heat shrink. Check out or selection of pre-cut heat shrink and adhesive rings to customize your build.

Lithium batteries can only be shipped ground. We ship our lithium batteries in accordance with all US laws. Batteries are not eligible for free shipping.

*Our charger/testers have a range of 2.8 - 4.2v; we find that manufacturers often specify a greater range (2.5 - 4.35v, for example), especially on higher-capacity cells. We make slight adjustments for 'effective capacity' to account for this. Capacity is written on each cell.

We ship the majority of our orders by the next business day. Lithium batteries may take up to two business days to process to accommodate inspection and logging into our system.

Our shipping rates are based on the weight of all ordered products plus estimated weight of packaging. We make every effort to forecast an accurate shipping cost, but cannot be 100% certain in all cases. Please contact us at with any questions prior to purchase.

We pack and label all lithium battery shipments in accordance with Federal Regulation 49CFR173.185, as well as USPS Publication 52 Hazard Class 9 or UPS/Fedex guidelines. Unless otherwise stated, lithium batteries are not eligible for free shipping.

We try to pack all items in an order in a single box, however we may on occasion need to ship items separately. Special shipping does not apply to lithium ion batteries, and orders that include batteries may not qualify for free or expedited shipping.

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