INR18650-35E — литий-ионный элемент 18650

About the Samsung SDI INR18650-35E 18650 Li-ion Cell 3,500 mAh 8 A

The INR18650-35E is the capacity end of Samsung's 18650 range: 3,500 mAh at 8 A continuous. Specify it where runtime per cell is the design driver and peak current stays modest — solar lighting, remote monitoring, medical devices, anything that discharges slowly for hours.

Why pack builders specify it

• 3,500 mAh nominal, 1,000 mAh more than the 25R in the same 18650 can
• 8 A continuous covers the large majority of sensor, lighting and portable electronics loads
• Low self-discharge suits equipment that sits idle between uses
• Long production run and wide availability keep pack cost predictable

Typical applications

• Solar and area lighting – Overnight runtime per cell drives the design; discharge is a fraction of an amp
• Power banks and portable electronics – Maximum stored energy in a standard 18650 holder
• Medical and monitoring devices – Infusion pumps, portable monitors and diagnostic handhelds with steady low draw
• Remote sensors and IoT – Long deployment intervals between service visits

Where it fits

Choose the 35E for capacity-first designs under 8 A. Above that, the 30Q covers up to 15 A and the 25R up to 20 A. Do not put the 35E in a high-drain tool or drone pack — the impedance is too high and the cell will run hot.

Charging and pack integration

Charge CC-CV to 4.2 V within the current limits listed above and stop discharge at 2.5 V. These are unprotected industrial cells: a BMS or protection circuit is required, interconnects must be resistance or laser welded rather than soldered, and cells of different model, batch or state of charge must not be mixed in one pack. Charging below 0 °C is not permitted unless the pack implements a low-temperature charge strategy.

Certifications and documentation

UN38.3, MSDS, IEC 62133-2, UL 1642, CE, RoHS, REACH, PSE, KC, BIS, CB. UN38.3 test summary, MSDS and the cell specification are available on request.

Packaging

Specification basis: Official Samsung SDI spec + cross-checked.