Rechargeable battery
Molicel INR21700-P42A (21700)

219 ₴

269 ₴

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Rechargeable battery</br> Molicel INR21700-P42A (21700)

In stock
Product code: 0000018

219 ₴

269 ₴

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5/5

Reviews: 4

Shipping Options

Delivery to the Nova Poshta office At carrier's rates
Courier NP at your address At carrier's rates

Payment methods

Cash

Warranty

6 months. Exchange/return of goods within 14 days

Product characteristics and description

Form-factor	21700
Capacity, mAh	4 200
Type of Cells	Li-ion
Nominal voltage, V	3,6
Maximum discharge current, A	45
Overall size (LxWxH), mm	21x21x70
Weight, g	68
Manufactured in	Taiwan

Battery for MOLICEL INR-21700-P42A Packs – Overview and Advantages

BTRY.ENERGY offers high-quality battery cells for assembling battery packs, including the MOLICEL INR-21700-P42A. This is a reliable lithium-ion cell that combines high performance, stability, and long service life. Manufactured in Taiwan, it is one of the best options for use in unmanned aerial vehicles and other energy-intensive devices.

Main characteristics of MOLICEL INR-21700-P42A:

Capacity: 4200 mAh – increased energy reserve for longer device operation.
Nominal voltage: 3.6 V – a standard value that ensures compatibility with most battery pack configurations.
Peak discharge current: 45A – an optimal indicator for use in high-load systems.

Why choose MOLICEL INR-21700-P42A?

This cell demonstrates high operational stability both in laboratory tests and in real-world conditions. It provides a balance between power, endurance, and safety, making it an ideal choice for drones and other power systems. Thanks to its characteristics, the MOLICEL INR-21700-P42A is widely used in 6S2P and 6S3P configurations, which are optimal for drones with propeller sizes from 6 to 10 inches.

Where to buy MOLICEL INR-21700-P42A batteries?

When choosing batteries, it is important to pay attention to product quality and authenticity. BTRY.ENERGY supplies only certified cells that comply with international standards. All products undergo double quality control, so our customers receive only new and original cells. You can order the battery on our website or contact our consultants to select the optimal solution for your needs.

▸Frequently Asked Questions (FAQ)

What is C-rate (discharge rate)?
C rate — is a technical indicator of current output. It defines how quickly a lithium-ion battery can safely deliver or receive charge relative to its capacity. For FPV drones and FPV quadcopters, this parameter is important because it affects the drone’s maneuverability and its ability to meet power demands. If we take our Lishen LR2170LA lithium battery with a peak discharge current of 45A as an example, the approximate C-rate is about 11C. This means the permissible load is roughly 11 times the capacity of 4000 mAh. In practice, a high C-rate ensures stable power delivery and reliable operation for combat FPV drones.

What is the difference between Li-ion and Li-Po?
First of all, both types are lithium batteries, but they have different internal chemistry. What can be said about lithium-ion? Li-ion batteries provide energy for a longer period because they have a lower C-rate. Yes, they are not ideal for FPV racing, but on the front line—where drones require longer flight time, such as reconnaissance FPV drones—they are the most suitable option. Now about Li-Po. Lithium-polymer (Li-Po) batteries are soft-pack cells whose main advantage is a higher maximum discharge rate, which is suitable for aggressive flying. This type of battery is more suitable for people who are interested in drones as a hobby, which is more common in Western countries.

What does the 6S2P configuration mean?
There are two types of connections: series and parallel. The number and combination of these connections are called a configuration. For example, in our pack built with Lishen cells, the configuration is 6S2P, where 6S stands for series connection and 2P stands for parallel connection. For drones, the base configuration is 6S (6 Series). Six series connections determine the voltage: with each cell having a nominal voltage of 3.6 V, the total voltage reaches approximately 22 V (rounded), which is required for powerful UAV systems. Then, depending on the drone used, the battery capacity is increased by adding parallel connections. The designation 2P (2 Parallel) means a parallel connection that doubles the capacity and current output: if one cell has 4000 mAh, then 2P = 8000 mAh.

How should batteries be charged properly?
This is indeed an important question. What does “proper charging” mean? Proper charging is the even distribution of energy across the cells, which helps avoid imbalance within the battery and prevents overheating and overload. To ensure proper charging, battery chargers were created. These devices usually have standard XT60 or XT30 connectors, as well as a port for connecting a balance cable. All you need to do is connect the XT60 cable and the 6S balance cable from the battery to the charger, set the charging parameters required for a Li-ion battery, and wait until the charging process is complete.

Where should batteries be stored?
The first thing you should know is do not store Li-ion batteries fully charged or fully discharged. The recommended storage voltage is provided by the manufacturer and is referred to as “Storage Voltage”, which usually means 3.7–3.8 V per cell. Storing batteries in the storage state minimizes capacity degradation. Now let’s talk about storage conditions, specifically the temperatures at which batteries should be kept. Li-ion chemistry requires a cool, dry environment (10–20°C) — not too cold or too hot. This means keeping them away from direct sunlight and heat sources, but also not in a refrigerator. It is also important to understand the consequences of unfavorable thermal conditions: Cold temperatures can reduce maximum capacity and accelerate battery wear. High temperatures can cause gas formation inside the cells, leading to overheating or, in the worst case, a battery explosion.

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Павло

24.04.2025

Дуже хочу подякувати компанії BTRY. Довго шукав елементи molicecl якийсь дефіцит був на ринку. Тільки у цих хлопців знайшов нормальні та у великій кількості. Ще раз дякую!

Влад

01.04.2025

Придбав дані акумулятори Molicel для того, щоб робити хлопцям збірки для дронів. Взяв 300 штук, потрібно було спаяти 5с1п акуми на велику кількість фпв на короткостроковий політ. Привезли батарейки гарно запакованими, без пошкоджень на коробках. Кожну батарейку команда сиділа і тестувала. Показники були такими, як і заявлено, палених батарейок виявлено не було. Після пайки збірок протестували їх безпосередньо на кількох дронах. Вийшло дуже задовільно, передали збірки бригадам. Хлопці з 0 передали, що всі збірки відпрацювали як треба і дуже нам дякували. У результаті, я впевнено можу порадити цей магазин по двом причинам:
1. Акуратна доставка яка не пошкодила батарейки.
2. Якісні батарейки. Палі нам не трапилося.
Думаю, навіть якщо знайду дешевше, братиму все рівно лише у Бетрай, показали найдійність.

Advantages Якість та доставка

AnswerДякуємо за детальний та позитивний відгук! Ваша вдячність за надійність доставки та якість батарейок для нас дуже важлива, адже ми завжди прагнемо забезпечити наших клієнтів найкращим сервісом і продукцією. Сподіваємось, що й надалі будемо виправдовувати Вашу довіру, і Ви будете задоволені нашою продукцією! Ваші відгуки допомагають нам ставати краще. Дякуємо за вибір і співпрацю!

Саша

26.03.2025

Брал материалы для собственной сборки. Очень быстро всё отправили. Я доволен

AnswerДякуємо за відгук! Сподіваємось, ваша збірка буде працювати на максимум! Якщо виникнуть ще запитання або нові запити — звертайтеся.

Сергій

13.03.2025

Блін вже і не думав знайти оригінальні моліселки. Гадав що в Україні вже тільки підробки. Дякую

Advantages Оригінал

AnswerСергію, дякуємо за ваш відгук!

Rechargeable battery
Molicel INR21700-P42A (21700)