# Rechargeable Li‑ion Battery XTAR 21700‑4900 3.7V 4900mAh — 21700, 2.17 cm × 74.8 mm

**URL:** https://aio.lv/en/product--xtar-21700-4900--11585091
**Data updated:** 2026-01-21 13:43 (EET)
**Category:** Batteries
**Manufacturer:** XTAR
**Manufacturer code:** 21700-4900
**EAN:** 6977699220191
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 13.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--xtar-21700-4900--11585091

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Rechargeable XTAR 21700‑4900 is a 21700 Li‑ion cell with nominal voltage 3.7 V and capacity 4900 mAh. Physical dimensions: diameter 2.17 cm and height 74.8 mm. Supplied as a single battery for high‑capacity portable devices, flashlights and power banks. Follow safety guidance: do not expose to direct heat and use compatible chargers.

## Long description

Rechargeable XTAR 21700-4900 is a high-capacity 21700 Li‑ion cell with a nominal voltage of 3.7 V and a rated capacity of 4900 mAh. The battery is supplied as a single cell with physical dimensions of 2.17 cm diameter and 74.8 mm height, intended for use in devices that require large-capacity cylindrical cells.
Advantages
The XTAR 21700-4900 offers a large 4900 mAh capacity in the 21700 format, providing extended runtime compared with smaller cylindrical cells. Its rechargeable lithium‑ion chemistry supports repeated charge cycles and is suitable for high-drain portable devices. The cell’s standard 21700 dimensions allow compatibility with devices and holders designed for this size.
Suitable for
 High-capacity flashlights
 Power banks and portable chargers
 High-drain electronic devices and tools
Key specifications
 Cell type: Rechargeable Lithium‑Ion (Li‑Ion)
 Nominal voltage: 3.7 V
 Rated capacity: 4900 mAh
 Format: 21700 cylindrical cell
 Dimensions: diameter 2.17 cm, height 74.8 mm
 Quantity: 1 cell included
How to use
Use the XTAR 21700-4900 in devices that accept 21700 cylindrical Li‑ion cells. Charge the cell only with chargers compatible with rechargeable lithium‑ion batteries and follow the charger manufacturer’s instructions. Insert the cell according to the device’s polarity markings and ensure correct seating in the battery compartment or holder before powering the device.
Usage recommendations
Do not expose rechargeable batteries to direct heat. Use compatible chargers, avoid short circuits, and store batteries in a cool, dry place when not in use.

## FAQ

### How much does the XTAR 21700‑4900 Rechargeable Li‑ion Battery cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 06.07.2026 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 XTAR 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 XTAR 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

https://aio.lv/img/cache/product/11585091/66712824_large.webp