These batteries LAST!! I was starting to think my new charger would be outdated before these Molicel P50B’s needed charged :). I will be buying more for sure.
Key Features
- Massive 5000mAh Energy Storage: Keeps high-performance systems running longer.
- Unmatched 60A Continuous Power: Built for extreme discharge demands.
- Cool & Efficient Operation: Low impedance design reduces heat under heavy load.
- Next-Gen 21700 Design: Optimized for elite electric mobility and aerospace platforms.
- Proven Molicel Quality: Trusted globally for performance-driven lithium-ion cells.
Overview
The Molicel P50B 21700 battery is engineered for the most demanding power applications on the planet. Delivering an exceptional combination of 5000mAh capacity and a staggering 60A continuous discharge rating, this cell enables electric vehicles, drones, and advanced energy systems to operate at peak performance. Designed for professional integration, the P50B defines the future of high-power lithium-ion technology.
Applications / Uses
- High-performance electric vehicles and racing platforms
- Electric motorcycles and competitive mobility systems
- Heavy-lift drones and eVTOL aircraft
- Mission-critical backup power systems
- Advanced battery pack engineering and prototyping
Specifications
| Manufacturer: | Molicel |
| Model: | P50B |
| Size: | 21700 |
| Positive Terminal: | Flat Top |
| Nominal Capacity: | 5000mAh |
| Continuous Discharge Rating (max): | 60A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Discharge Cut-off Voltage: | 2.5V |
| Protected: | No |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21.55mm x 70.15mm |
| Approx. Weight: | 70g |
⚠ Important Safety Warnings
Improper handling or misuse of this lithium-ion battery can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Critical Warning: Never carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.
- Intended Use: This battery is designed for integration into protected battery packs with a Battery Management System (BMS) or Protection Circuit Board (PCB). It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.
-
Thermal Runaway: A chain reaction where heat from a failing battery
causes further overheating, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.
- Inspection: Do not use if the PVC wrapper, terminal insulator, or casing is damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger specifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
-
Prohibited Activities:
- Do not expose the battery to extreme heat, fire, or liquids.
- Do not short circuit, puncture, crush, or modify the battery.
- Do not charge or discharge beyond the manufacturer’s voltage range.
- Do not dispose of in regular trash—always recycle at approved facilities.
- Emergency Response: If a cell shows signs of thermal runaway (e.g., smoke, swelling, hissing, or heat), stop use immediately and, if it can be done safely, move it to a non-flammable surface (e.g., concrete or sand) away from combustible materials. Lithium-ion cells burn as Class B fires — use an ABC / dry-chemical fire extinguisher, or douse with large amounts of water to cool the cell and prevent the fire from spreading. Do not rely on a small spray; thorough cooling is required, and cells can reignite from residual heat, so monitor the area afterward. (Class D extinguishers are intended for lithium-metal batteries, not lithium-ion.) For any fire beyond a single small cell, evacuate and call emergency services.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.
Customer Reviews
Overall rating: 5.0 / 5 from 23 reviews.
These batteries are amazing!! Will be buying more!
These are solid batteries, the best 21700’s I’ve ever used and I’ve used a lot of different kinds! Shipping was also very fast as usual that’s why I continue to shop at 18650 battery store. Thank you guys.
"Current" bat king!!
The 21700 battery worked great for me. Highly recommend and will buy again.
Amazing battery's, the quality is top notch. You can tell by the weight alone, but besides that they are performing great so far. Needed 3 for a high power flash light and they are delivering flawless performance!
Perfect fit for my rayden mod 👌 log life came in at 25% charged at 0.5A for long lasting life fast shipping also 👍
These are great batteries compared to the previous generation of technology.
Was waiting for them to be back in stock, it just so happens they were. So I purchased some. To replace some damaged cells. Shipping was on point as was the price.
Absolutely Hands down , an amazing cell. I plan on purchasing more.
Great battery so far
Molicel p50b's are the best, these batteries are workhorses. Plenty of power and long lasting, Molicel is all I use, 18650s and 21700s, Shout out to 18650 Battery Store💯🔥💜🤘💨💨💨
quality made battery at a competitive price point.
I normally used the p45b batteries, and now all I wanna use are the p50b's from molicel.. they last way longer, shout out to 18650 battery store, always order from them, never any problems to date! I'll continue ordering from them! You guys are awesome and Much Love... Appreciate ya!💯🔥💜🤘🤙✌️
Got delivered quickly and I got exactly what was ordered 10/10 would buy again
Excellent quality batteries and shipped fast as always. Thank you
Good price on great batteries!!!
Great batteries. Wish they would use someone else other than USPS. They have been horrible lately. I get why they use them and this is not the fault of 18650 Battery. Good price and great batteries.
Batteries are great and arrived quickly in a protective case and packaged very well. Love buying from here.
Batteries work great! I have been using molicell batteries for years with no issues!
Good quality, fast shipping
Perfect, as expected!
New cells test out legit! They were one of the first to carry them. Shipped 🏃♂️ fast. 2-3rd order from these guys without issue.