The 28a model does a great job from device settings 21-37w. Much above that and mAh evaporates. They charge great and I’ve started to buy the 30a model! Stellar vapor batteries!
Key Features
- High 2800mAh capacity with exceptional power density
- Delivers up to 35A continuous output for demanding applications
- Designed for consistent performance under heavy load
- Flat top format ideal for custom battery packs
- Built for durability and long-term reliability
Overview
The Molicel P28A 18650 battery delivers outstanding power and reliability in a compact form factor. Combining a 2800mAh capacity with a strong 35A continuous discharge rating, this cell is engineered for high-demand applications where consistent output and long service life are essential.
Applications / Uses
- Battery packs for power tools
- Electric mobility and transport systems
- High-performance portable lighting
- Energy storage solutions
- Professional and DIY power projects
SPECIFICATIONS
| Manufacturer | Molicel |
| Model | INR-18650-P28A |
| Size | 18650 |
| Positive Terminal | Flat Top |
| Nominal Capacity | 2800mAh |
| Continuous Discharge Rating | 35A |
| Nominal Voltage | 3.6V |
| Maximum Voltage | 4.2V |
| Discharge Cut-Off Voltage | 2.5V |
| Protected | No |
| Rechargeable | Yes |
| Approx. Dimensions | 18.50mm × 65.15mm |
| Approx. Weight | 45.18g |
| Data Specification Sheet | Molicel P28A Datasheet |
⚠ 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 or box.
- 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 use in devices such as e-cigarettes or vaporizers.
-
What is Thermal Runaway?
- A dangerous chain reaction where heat generated by a failing battery causes it to overheat further, potentially leading to fire or explosion.
- Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
- Prevention: Use a smart charger, avoid physical damage, and store batteries in a cool, dry place.
- Storage & Transport: Always store batteries in protective cases or boxes 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. These are signs of internal damage or instability, and continued use could result in failure, fire, or explosion.
- Charging: Use a smart charger designed specifically for lithium-ion batteries and ensure that the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
- Prohibited Activities: Do not short circuit, modify, puncture, crush, expose to liquids, or solder directly onto the battery (spot weld only).
- Emergency Response: If a cell shows signs of thermal runaway (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 combustibles. Lithium-ion cell fires are Class B fires — use an ABC/dry-chemical extinguisher, or douse with large amounts of water to cool the cell and prevent spread. 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 for lithium-metal batteries, not lithium-ion.) For any fire beyond a single small cell, evacuate and call emergency services.
Disclaimer
IMR Batteries 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 product warnings and safety guidelines are effectively communicated to their customers. Some cells are sold in bulk packaging and are not individually packaged. Resellers must provide appropriate packaging for each individual cell sold and must not distribute cells loose, unprotected, or without a proper storage box or case.
Product compatibility is the sole responsibility of the customer. IMR Batteries does not guarantee compatibility with any specific device or application. We are not responsible for the design, assembly, performance, or safety of any battery pack constructed using our cells. It is the customer’s responsibility to ensure proper cell matching, protection circuitry, configuration, and safe construction practices. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.
Customer Reviews
Overall rating: 4.8 / 5 from 271 reviews.
IMRBatteries has been my go to place for high quality cells delivered right to my door for many years now. They are consistent, reliable, and fast!
Working great 😊
Came on time and works wonderful thank you very much..
I found this store & the batteries I was needing doing research. The batteries last several days & I like the low tech-ness of the charger as well. I plan to purchase more since I have found a reliable supplier.
Quick service and very reliable for what I'm using them for. The lifespan on a single charge lasts for me around twelve hours.
The shipping was standard. I put them in my flashlight, and the charge really does last a long time—I definitely recommend them.
Absolutely awesome batteries at a real fair price. I get almost 2 days on a charge. Definitely a winner
Nothing better and no better place to buy them
Worked perfectly to repack a flex 24v 5.0h battery that had died. It is now “technically” a 5.6 ah. Very happy with my purchase.
Good quality batteries.
Great product! Fast shipping and works well, would recommend!
Great site great batteries
Molicel P28A 18650 2800mAh 35A batteries are my all day everyday go to battery running 3 in a parallel mech mod the OG defiant TS triple battery squonk mech mod carrying the load on all my low ohm resistance builds,,,, these batteries need no hype their perfectly capable for the job at hand and do it extremely well,,,, with more than a dozen mechanical / regulated devices,,, these 35A CDR’s keep me safe running daily,,, buy with confidence,,, Molicel batteries deserves that 5 star review,,
Works great!
Great batteries. These are outstanding for what i needed them for. Molicel batteries are fantastic.
These so far are the best batt. that I've owned so far. They last more than 3 days before they start to lose power in my vape devices. I would highly recommend them to anyone.
Love the 21700's & the 18650's are just as good ..hit hard & long lasting. .no complaints here.
Molicel's have been my go batteries for years. Never had any problems 18650 or 21700.
these batteries are unreal power houses
These batteries are Mooch's top rated 18650 cell and it's easy to see why. Great power and life. Will definitely buy again.
Works well and keeps a charge for a long time!
These batteries are great! They were shipped securely, packed well, and the product is high quality. I will be ordering more of these batteries in the near future.
Very good cells i trust these wont go angry in meh face ha . No really i trust molicel and imrbatteries.com with my life . Great companies . Thank you imrbatteries.com for having such a fine business to facilitate these dangerous goods in such a safe and mindful way .
As always great service prompt shipping thank u
The Molicel P28A 18650 2800mAh 35A battery is a high-performance cell that stands out for its impressive balance of capacity and discharge rate. With a typical capacity of 2800mAh and a maximum discharge current of 35A, it is well-suited for vaping and has been my go to battery for years now.
These batteries work great that's why I am a repeat buyer. The batteries are strong and consistent retaining their power for a long time.
These batteries are a super great price, and they last long before needing a charge. Heard of them through reddit and gave it a shot.. I recommend these batteries.
The video shows a before and after rebuild. On a cost to performance ratio, the Molicel P28A 18650 2800mAh 35A Battery is a top performer. Since you are often powering tools which require high current draw, even a single series array of these cells can provide the current without overheating. Be sure to use tabbing, I recommend copper nickel sandwiches , which can handle the continuous 35 A output.
The batteries worked better than expected. Strong performance and long lasting.
These batteries are awesome, I think about the third time I’ve ordered, and it won’t be the last. Great capacity, power and priced right! Thanks IMR Batteries!
Purchased 8 cells to make 2 4S packs for flying my quad and airplanes. Build another pack with the same cells last summer and found they are well suited for my application. I get almost 2x flight time with these as opposed to LIPO packs.
Works perfectly lasts all day with me pulling hard!
IMR has such a good variety of quality batteries. I needed 18650's that would hold up under a 30 amp load and when I use these golisi 18650's they barely go above 20 amps and they are rated at 35. they last pretty well. I'll take solid amperage over lasting longer any day. these are great batteries!
Best batteries out there. 0 ramp up time. Immmediate power. And they last a loooong time.
It’s great
It�s great
Fast response, even during hurricane
The best battery that actually holds its charge. Gonna order some more.
Product was exactly what was described. Fast shipping