---
product_id: 463827077
title: "D"
brand: "lankoo"
price: "¥9430"
currency: JPY
in_stock: null
reviews_count: 13
category: "Lankoo"
url: https://www.desertcart.jp/products/463827077-d
store_origin: JP
region: Japan
---

# 4-Hour Fast USB-C Recharge 1200 Recharge Cycles Durable 12000mWh High Capacity D

**Brand:** lankoo
**Price:** ¥9430
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Power up smarter, faster, greener — never run out or waste again!

## Quick Answers

- **What is this?** D by lankoo
- **How much does it cost?** ¥9430 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/463827077-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

- • **Stay Informed with LED:** Intuitive red LED indicators show charging progress so you never guess when it’s ready.
- • **Power That Lasts & Lasts:** 12000mWh capacity fuels your devices longer than standard alkaline batteries.
- • **Certified Safe & Reliable:** CE, FCC, and RoHS certifications guarantee safety for you and your devices.
- • **Charge at Lightning Speed:** USB-C port enables a full recharge in just 4 hours—twice the batteries, one cable.
- • **Eco-Smart & Wallet-Friendly:** Over 1200 recharge cycles save you money and reduce waste—join the green revolution.

## Overview

This 2-pack of USB-C rechargeable lithium-ion D batteries delivers a robust 12000mWh capacity with a constant 1.5V output. Designed for fast 4-hour charging and an impressive 1200 recharge cycles, these batteries combine convenience with eco-conscious savings. Equipped with LED charge indicators and certified for safety, they’re perfect for powering everything from flashlights to children’s toys with reliable, sustainable energy.

## Description

Shop 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. Free delivery and returns on eligible orders.

Review: Brilliant. Excellent charger - Loved these. Comes with a dual cable making it possible to charge both batteries at the same time.
Review: Good product. - These batteries last as long as normal ones and are easily rechargeable.

## 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 |
| Best Sellers Rank | 9,905 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 250 in Rechargeable Household Batteries |
| Guaranteed software updates until | unknown |
| Item model number | D |
| Manufacturer | LANKOO |

## Product Details

- **Battery capacity:** 12000 Milliampere Hour (mAh)
- **Battery cell composition:** Lithium Ion
- **Brand:** Lankoo
- **Number of batteries:** 2 D batteries required. (included)
- **Recommended uses for product:** Bicycle, Camera, Laptop, Phone

## Images

![D - Image 1](https://m.media-amazon.com/images/I/51dsPWhCSEL.jpg)
![D - Image 2](https://m.media-amazon.com/images/I/51kJ+o6JRBL.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)

## 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

### ⭐⭐⭐⭐⭐ Brilliant. Excellent charger
*by C***D on 4 September 2023*

Loved these. Comes with a dual cable making it possible to charge both batteries at the same time.

### ⭐⭐⭐⭐⭐ Good product.
*by D***N on 26 November 2023*

These batteries last as long as normal ones and are easily rechargeable.

### ⭐⭐⭐⭐ Hot when being charged
*by D***R on 16 September 2022*

They are good and do what they should, just be aware the top of the battery gets very hot when charging.

## 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.jp/products/463827077-d](https://www.desertcart.jp/products/463827077-d)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-03*