# Rechargeable lithium-ion cell Samsung INR21700-40T 3.6V 4000mAh 35A (21700)

**URL:** https://aio.lv/en/product--samsung-ak21700400040t--11203448
**Data updated:** 2026-02-14 19:36 (EET)
**Category:** Other Repair Parts
**Manufacturer:** Samsung
**Manufacturer code:** AK21700.4000/40T
**EAN:** 310000204944
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.26 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 6.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--samsung-ak21700400040t--11203448

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Samsung INR21700-40T is a rechargeable 21700-format lithium‑ion cell with nominal voltage 3.6V, capacity 4000mAh and continuous discharge rating up to 35A. Designed for high‑energy and high‑drain applications such as power tools, e‑bikes, flashlights and battery packs. Provides long runtime, stable voltage under load and reliable cycle life when used with appropriate protection and charging.

## Long description

Samsung INR21700-40T is a rechargeable lithium-ion cell in 21700 format with a nominal voltage of 3.6V and a rated capacity of 4000mAh. The cell is engineered to combine high energy density with a high continuous discharge capability, offering stable voltage under load and extended runtime for demanding portable power applications. Intended for use in assemblies with appropriate protection and charging systems, this cell supports applications that require both sustained energy storage and moderate-to-high discharge currents.
Advantages
The cell provides a balance of high capacity and a 35A continuous discharge capability, enabling longer run times without compromising the ability to deliver sustained current when needed. Its 21700 format increases usable energy per cell compared with smaller formats, while consistent voltage under load helps maintain device performance. When used in properly designed packs with battery management and thermal protection, the cell delivers reliable cycle life and predictable behavior across a range of temperatures and loads.
Suitable for
 Battery packs for e-bikes and electric scooters
 High-power flashlights and portable lighting
 Power tools and cordless equipment
 DIY battery packs and energy storage modules
 Hobbyist high-drain devices and custom electronics
Key specifications
 Cell format: 21700 cylindrical cell
 Nominal voltage: 3.6 V
 Rated capacity: 4000 mAh
 Continuous discharge current: up to 35 A
 Chemistry: lithium-ion (NMC-based INR type)
 Typical use case: high-energy and high-drain applications
How to use
Install the cell only into devices or battery packs designed for 21700 lithium-ion cells and ensure correct polarity. Use a compatible charger and a battery management system (BMS) or protection circuit to control charge and discharge limits, balancing and cell monitoring. Observe manufacturer recommendations for charge voltage and current limits and avoid charging at temperatures outside the cell’s safe operating range. Cells should be assembled into packs by qualified persons or professionals who can ensure proper mechanical fixation, electrical connections, and thermal management.
Usage recommendations
Operate the cell within recommended charge and discharge parameters, store at moderate state of charge in a cool, dry place for prolonged storage, and avoid exposing cells to mechanical damage, extreme temperatures, or water. Always use appropriate protection circuitry and follow local regulations for transport and disposal of lithium-ion cells.

## FAQ

### How much does the Samsung INR21700-40T 3.6V 4000mAh 35A cell cost, and is it available for purchase?

The price is 8.26 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Samsung products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Samsung service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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