---
product_id: 225919754
title: "D"
brand: "lankoo"
price: "€ 34.71"
currency: EUR
in_stock: false
reviews_count: 8
category: "Lankoo"
url: https://www.desertcart.fi/products/225919754-d
store_origin: FI
region: Finland
---

# 4-hour fast Type-C USB charging 1200+ recharge cycles durability 12000mWh high capacity D

**Brand:** lankoo
**Price:** € 34.71
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power Up Smarter, Charge Faster, Live Greener!

## Quick Answers

- **What is this?** D by lankoo
- **How much does it cost?** € 34.71 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/225919754-d)

## Best For

- lankoo enthusiasts

## Why This Product

- Trusted lankoo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clear LED Charge Status:** Stay informed with intuitive red LED indicators showing charging progress at a glance.
- • **Rapid Type-C USB Charging:** Plug in anywhere—power banks, laptops, or adapters—for a full charge in just 4 hours.
- • **Certified Safety Assurance:** CE, FCC, and RoHS certified to protect you and your devices with trusted compliance.
- • **Eco-Smart Rechargeable Power:** Ditch disposables and save money with long-lasting lithium-ion tech.
- • **Versatile High-Capacity Energy:** Perfect for flashlights, toys, cameras, and more with a robust 12000mWh output.

## Overview

The Lankoo USB D Lithium-ion Rechargeable Battery delivers a powerful 12000mWh capacity with eco-friendly reuse for over 1200 cycles. Featuring fast 4-hour Type-C USB charging and clear LED indicators, it’s designed for versatile use in flashlights, toys, and cameras. Certified safe with CE, FCC, and RoHS standards, it’s the modern upgrade for professionals seeking reliable, cost-effective energy solutions.

## Description

desertcart.com: Lankoo USB D Lithium ion Rechargeable Battery, High Capacity 1.5V 12000mWh Rechargeable D Battery, 4 H Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,2-Pack : Health & Household

Review: Lasts a Long Time - I can’t believe I’ve been using my batteries for over 4 years on a regular basis in a fan. They take a little longer to charge now. These would probably be equivalent to an EV with 200,000 miles on it.
Review: PERFECT For the EDC C1 and other small AAA Lithium Flashlights - I have looked for a product like this for YEARS now and I am glad it finally exists. I ordered this and waited weeks for it to arrive. I am only using one of the batteries but I have an "every day carry" flashlight that uses a single one of these batteries and this works perfectly. My original battery was worn out and my replacement batteries need a physical charger (can't be charged on battery) but this is the best of both worlds. Way more capacity than the original battery and USB-C charging! Time will tell how they last and I will report back if they fail but right now I am super happy!

## Features

- SWITCH TO RECHARGEABLE: Stop wasting money on standard alkaline D batteries! Switch to our rechargeable lithium batteries for the same great performance. Reuse the batteries repeatedly. Be eco-friendlier and more cost-effective
- Type C USB CHARGING: Directly plug a Type C USB into the input for quick and easy charging. Use the included cable to connect simultaneously connect 2 batteries to any USB power supply. Connect to an AC adapter, power bank or computer, and fully charge in around 4 hours. Long lifecycle will allow over a 1200 uses
- LED INDICATORS: When charging, the red LED will blinks and will then LED remains on once it is fully charged. Conveniently see the charging status of each battery
- LARGE CAPACITY: 12000mWh capacity provides sufficient power for a wide range of products. Perfect for LED candle, flashlight, ortable CD and MP3 players, digital camera, children' toys and so on.
- CETIFIED SAFETY: Compliant with North American safety standards. CE, FCC and RoHs recognized safety for guarantee user and device safety

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08C7S5JVM |
| Antenna Location | Camera |
| Battery Capacity | 650 Milliamp Hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 1 Grams |
| Best Sellers Rank | #40,043 in Health & Household ( See Top 100 in Health & Household ) #20 in D Batteries |
| Brand | Lankoo |
| Compatible Phone Models | No |
| Customer Reviews | 4.1 out of 5 stars 1,306 Reviews |
| Item Dimensions | 1.35 inches |
| Manufacturer | LANKOO |
| Model Number | D |
| Number of Batteries | 2 D batteries required. (included) |
| Recommended Uses For Product | Camera |
| Reusability | Rechargeable |
| UPC | 604697252386 |
| Unit Count | 2.0 Count |
| Voltage | 1.5 Volts |

## Product Details

- **Number of Batteries:** 2 D batteries required. (included)
- **Brand:** Lankoo
- **Battery Cell Composition:** Lithium
- **Battery Capacity:** 650 Milliamp Hours
- **Recommended Uses For Product:** Camera

## Images

![D - Image 1](https://m.media-amazon.com/images/I/51kJ+o6JRBL.jpg)
![D - Image 2](https://m.media-amazon.com/images/I/51dsPWhCSEL.jpg)
![D - Image 3](https://m.media-amazon.com/images/I/51nISQUr+hL.jpg)
![D - Image 4](https://m.media-amazon.com/images/I/51sMsgApcQL.jpg)
![D - Image 5](https://m.media-amazon.com/images/I/51sNe6uk60L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Seller was paid for 4 batteries, but I only got 3 working batteries.  How can I reach their customer service?**
A: Well. I got 2 but none of them works. Please let me know if you find out. Amazon should get rid of this seller.

**Q: How long does the charge hold while not in use?**
A: Lithium-Ion has a very high retention at mid-charge.  Generally it loses around 5-10% charge in the first 72 hours until it hits 90%, then around 2-3% per month.  Once it drops under 20%, it will begin to die out rapidly within around 2 weeks.

**Q: Are these batteries supposed to reach temps of over 140+ degrees when charging? I'm afraid they're going to catch fire.**
A: No, that is too hot.  About 120 is as hot as they should get. You should be protected against a fire like the seller pointed out although it’s not a safety valve it’s a fuse that will break but can’t be reset.  But if the battery is getting that hot in the first place it make me question the quality and worry that the fuse won’t work.  The seller is completely wrong about it being impossible for the battery to catch fire, it’s rare but definitely possible.  Also fire aside getting that hot is going to severely shorten the battery’s lifespan.

**Q: What is the weight in grams of a single aaa battery?**
A: Not sure but light them 1.2v recharge and regular 1.5v battery

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lasts a Long Time
*by S***E on September 21, 2025*

I can’t believe I’ve been using my batteries for over 4 years on a regular basis in a fan. They take a little longer to charge now. These would probably be equivalent to an EV with 200,000 miles on it.

### ⭐⭐⭐⭐⭐ PERFECT For the EDC C1 and other small AAA Lithium Flashlights
*by J***0 on November 15, 2023*

I have looked for a product like this for YEARS now and I am glad it finally exists. I ordered this and waited weeks for it to arrive. I am only using one of the batteries but I have an "every day carry" flashlight that uses a single one of these batteries and this works perfectly. My original battery was worn out and my replacement batteries need a physical charger (can't be charged on battery) but this is the best of both worlds. Way more capacity than the original battery and USB-C charging! Time will tell how they last and I will report back if they fail but right now I am super happy!

### ⭐⭐⭐⭐ Full 1.5vdc
*by J***F on June 19, 2021*

Used in Marathon Backlit Wall Clock. Original Alkaline batteries lasted 5 months. Ni-Mh batteries at first lasted 2 1/2 months, but recharged batteries only lasted a week. The Lit-Ion batteries are as bright allowing the clock to be read at night. The only problem I had with these batteries is that it uses 2 USB-c connectors that fit loose. The connectors would come out when placing them on the other. They had to be wiggled to allow charging and had to be positioned at an angle to put weight on the connectors to charge.

## Frequently Bought Together

- Lankoo USB D Lithium ion Rechargeable Battery, High Capacity 1.5V 12000mWh Rechargeable D Battery, 4 H Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,2-Pack
- Beech Lane RV Fridge Fan, Patented, High Power 3,000 RPM Motor, Easy On and Off Switch, Multiple Side Vents Increase Airflow, Durable Construction, Efficiently Cools Refrigerator (Natural)

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**Shop now:** [https://www.desertcart.fi/products/225919754-d](https://www.desertcart.fi/products/225919754-d)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-12*