The Samsung INR18650-35E is one of the best 18650 cells available — combining the highest capacity in its class (3500mAh) with a solid 8A continuous / 13A pulse discharge rating. New, original Samsung SDI cell, unused, from current production.
Perfect for building battery packs, e-bikes, electric scooters, high-power flashlights, and DIY energy storage projects.
Specifications
| Brand | Samsung SDI |
|---|---|
| Model | INR18650-35E |
| Type / Size | 18650 |
| Chemistry | Li-Ion |
| EAN / GTIN | 5907621900625 |
| Maximum voltage | 4.2 V |
| Nominal voltage | 3.6 V |
| Internal resistance | < 20 mΩ |
| Weight | 54 g |
| Continuous discharge current | 8 A |
Why Samsung 35E?
- Highest capacity in the 18650 class — 3500mAh is the top of what this chemistry and size can deliver. More capacity means longer e-bike range and more hours from your flashlight.
- Low internal resistance — under 20mΩ. Minimal heat losses, efficient energy delivery under load.
- Trusted manufacturer — Samsung SDI is one of the world’s three largest cylindrical cell producers.
- Up to 500 charge cycles — retaining over 80% capacity with proper use and a good BMS.
Applications
- Electric bikes (e-bike) — 36V, 48V, 52V battery packs
- Electric scooters — high-capacity packs, long range
- High-power flashlights and headlamps — extended runtime
- DIY power banks — custom USB battery builds
- Off-grid and UPS storage — small powerwall and backup systems
⚠️ Note: The 35E is optimised for capacity, not peak current. If you need above 15–20A continuous (aggressive e-bike builds, high-drain power tools), consider the Samsung 25R or Samsung 30Q instead.
This cell has no built-in PCM/PCB protection circuit. Use it in systems with an external BMS protecting against overcharge (>4.2V), over-discharge (<2.65V), and short circuits.
Frequently Asked Questions
Is this a new cell?
Yes — new, unused cells from current Samsung SDI production.
What is the actual capacity of the Samsung 35E?
Typical capacity is 3500mAh, with a guaranteed minimum of 3350mAh. The difference is due to manufacturing tolerances; in practice you receive a cell very close to the nominal value.
Is the Samsung 35E suitable for an e-bike?
Yes — it’s one of the most popular cells for DIY e-bike packs at 36V and 48V. With 8A continuous and 13A pulse discharge, it handles motors up to approximately 500–700W.
How many cycles does the Samsung 35E last?
Up to 500 cycles retaining over 80% capacity, with standard use (discharge to 2.75V, charge to 4.2V). Deep discharges or fast charging will reduce cycle life.
How do I charge the Samsung 35E?
Use a CC/CV charger with a cutoff voltage of 4.2V and a charge current up to 2A. Never charge unattended outside a suitable fireproof container.
Frequently asked questions
🔹 Jak długo wytrzymuje ogniwo Samsung 35E?
Około 1000 cykli ładowania, co oznacza kilka lat użytkowania przy standardowym obciążeniu.
🔹 Czy ogniwo Samsung 35E można ładować szybką ładowarką?
Tak, ale należy stosować maksymalnie 4 A, aby nie skrócić żywotności ogniwa.
🔹 Jak odróżnić oryginalne ogniwo Samsung 35E od podróbki?
Sprawdzaj oznaczenia producenta, numer seryjny i jakość nadruków – podróbki często mają niedokładne detale.
🔹 Czy Samsung 35E jest lepszy od innych ogniw 18650?
Zależy od zastosowania – jeśli potrzebujesz wysokiej pojemności i umiarkowanego prądu rozładowania, jest to świetny wybór.
🔹 Jak przechowywać ogniwa, by nie straciły pojemności?
Przechowuj w chłodnym i suchym miejscu, najlepiej naładowane do ok. 40–50%.
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