# SmallRig 3821 Battery and Charger Kit for Digital Cameras

**URL:** https://aio.lv/en/product--oem-3821--12492208
**Data updated:** 2026-06-02 20:11 (EEST)
**Category:** Battery chargers
**Manufacturer:** OEM
**Manufacturer code:** 3821
**EAN:** 6941590008288
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 78.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 64.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-3821--12492208

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The SmallRig 3821 is a professional battery and charger kit designed for digital cameras. It includes high-capacity 2040 mAh Lithium-Ion batteries and a dual-slot charger with an integrated LCD screen for real-time status monitoring. Powered via USB, this durable ABS and PC housing kit offers reliable performance for photographers and videographers needing efficient power management on the go.

## Long description

The SmallRig 3821 Battery and Charger Kit is a professional power solution designed for digital cameras, providing reliable energy for extended shooting sessions. This kit includes two high-capacity 2040 mAh Lithium-Ion batteries and a versatile dual-slot charger, ensuring that photographers and videographers always have a backup power source ready. The components are housed in durable, fireproof ABS and PC materials, offering a robust build that withstands the rigors of field work while maintaining a compact form factor identical to original equipment.
Advantages
The primary benefit of this kit is its fully decoded chip technology, which ensures seamless compatibility with your camera without triggering error messages or pop-up windows. The dual-slot charger features an integrated LCD screen that provides real-time data on charging voltage, current, and capacity, allowing for precise monitoring of your power status. With multiple input options, including a built-in USB-A cable and a USB-C port, the charger offers exceptional flexibility, enabling you to power up via wall adapters, power banks, or car chargers while on the move.
Suitable for
Professional photography and videography
Travel and outdoor location shoots
Studio sessions requiring continuous power
Backup power management for digital cameras
This kit may not be suitable for cameras that do not utilize the specific battery type compatible with this model. Additionally, users who require extremely high-wattage rapid charging beyond standard USB power delivery specifications may find the charging speed limited by the input source.
Key specifications
Battery capacity: 2040 mAh per battery
Battery technology: Lithium-Ion
Number of batteries supported: 2
Charging interface: Built-in USB-A cable and USB-C input
Display: Integrated LCD screen
Housing material: Fireproof ABS and PC
Input requirements: 5V / 2.1A
Output voltage: 8.4V
How to use
To use the kit, simply insert one or both batteries into the dual-slot charger. Connect the charger to a power source using either the integrated USB-A cable or the USB-C input port. The LCD screen will automatically activate, displaying the real-time charging status for each battery. Once the charging progress indicator shows full capacity, remove the batteries and insert them into your camera's battery compartment. The batteries are designed to fit seamlessly, matching the dimensions of original manufacturer batteries.
What to consider before purchase
Verify that your camera model is compatible with the LP-E6NH battery type
Ensure you have a compatible USB power source, such as a wall adapter or power bank
Consider the charging time based on the output of your chosen power source
For optimal battery health and longevity, it is recommended to use a high-quality USB power adapter that meets the 5V/2.1A input requirement. Avoid exposing the batteries or charger to extreme temperatures or moisture to maintain peak performance.

## Specifications

### Power

| Feature | Value |
|---|---|
| Input voltage | 5 |
| Output voltage | 8.4 |
| Input current | 2.1 |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 2040 mAh |
| Battery voltage | 7.2 V |
| Batteries included | Yes |
| Number of batteries included | 2 pc(s) |
| Battery 2 capacity | 2040 mAh |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Housing material | Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS) |
| Built-in display | Yes |
| Display technology | LCD |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.27 kg |
| Height | 162 mm |
| Width | 115 mm |
| Depth | 36 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Features

| Feature | Value |
|---|---|
| Number of batteries supported | 2 |
| Compatible battery technologies | Lithium-Ion (Li-Ion) |
| Compatible products | EOS R / EOS R5 / EOS R6 / EOS 60D / EOS 60Da/ EOS 70D / EOS 80D / EOS 90D / EOS 5D Mark II / EOS 5D Mark III / EOS 5D Mark IV / EOS 5DS / EOS 5DS R/ EOS 6D / EOS 6D Mark II / EOS 7D / EOS 7D Mark II / BG-E6 / BG-E7 / BG-E9 / BG-E11 / BG-E13 / BG-E14/C700 / XC10 / XC15... |
| Country of origin | China |
| Power source type | USB |
| Brand compatibility | Canon |
| Suitable for | Digital camera battery |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 283 g |
| Package depth | 36 mm |
| Package height | 115 mm |
| Package width | 163 mm |
| Package type | Box |

## FAQ

### How much does the SmallRig 3821 Battery and Charger Kit cost, and is it available for purchase?

The price is 78.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 01.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can SmallRig 3821 Battery and Charger Kit be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 OEM 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 OEM 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, number of batteries supported, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12492208/68821991_large.webp