THESE BATTERIES ARE AWESOME. MY VAPE LAST APPROX 3 DAYS BETWEEN EACH CHARGE
Key Features
- High 3500mAh capacity for long-lasting power
- Strong continuous output with added pulse performance
- Stable voltage delivery for reliable operation
- Designed for efficiency and consistent energy flow
- Standard 18650 format for versatile applications
Overview
The IMREN 18650 3500mAh battery offers an excellent balance of capacity, stability, and performance. Built to support applications that demand long runtime and dependable output, this cell provides consistent power delivery with additional pulse capability to handle higher short-term loads.
Applications / Uses
- Portable power banks
- Energy storage systems
- High-end electronic equipment
- Backup and reserve power solutions
- Professional power projects
SPECIFICATIONS
| Manufacturer | IMREN |
| Size | 18650 |
| Positive Terminal | Flat Top |
| Nominal Capacity | 3500mAh |
| Discharge Rating | 10.5A Continuous / 30A Pulse |
| Nominal Voltage | 3.7V |
| Maximum Voltage | 4.2V |
| Protected | No |
| Rechargeable | Yes |
| Approx. Dimensions | 18.39mm × 65.27mm |
| Approx. Weight | 46.9g |
| Data Specification Sheet | IMREN 18650 3500mAh 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.
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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 212 reviews.
Only brand I’ve ever used is Imren! They last long long time imo, have a couple pair that are over 3 yrs old and still rockin strong!! Great batteries at great prices!! Hope they get the 21700 5000mahs in stock soon, need those next & asap!!
Totally impressed. Fast delivery. Nice packaging. Free tote bag! What’s not to like?
I love imren batteries, but I think I got a bad one in a set. After a full charge one depletes quicker than the other. While one is at 50%, the other is at 8%. I ordered 2 sets and I don't have the problem with the others. I always know when I need to replace my batteries because they start to do that.
2 out of 4 batteries don't hold charge long. But the other 2 work good.
I don't have a great deal to say about these, other than that I bought them to replace some counterfeit 18650s, and not only did they do the trick, they also longer than expected. I'm very pleased with this purchase.
These are great batteries that hold their charge for a long time
Never any issues with the IMREN batteries.
Very quick shipping
doesn"t hold charge long
The are the best batteries I've used for vaping.
They work great and hold charge about 24 hrs.
These are great batteries that hold their charge for a long time
This battery lasts much longer than others, however it is larger in width than other 18650 batteries. But they fit fine for my application.
Excellent so far
They were the right price
Great device, capacity is good, holds good power
so far, so good
These batteries are the best I have found so far. They stay charged longer and last longer than any other battery I have tried.
:+1::+1::+1::+1:
Perfect. They hold charge all day with regular use of my vape.
Fast shipping and great product.
These are amazing, they really perform extreamly well when compaired to the BAK 3350mah I got in the same order. The BAK doesn't have the performance these do. Absolutely would by again for my application. Orqa Fpv.One Pilot FPV goggles.
This is actually my 2nd time buying these! The last pair I bought was about 2 & 1/2 years ago and I'm still using them in my vape to this day! Love them so much I had to buy more!
Good product, deliver on time nice quality
Great batteies! Worked exactly as expected!
Exactly what I needed. Good price and fast shipping.
They are great they charge fast and they are the longest lasting batteries I've ever had
Great Quality. First time using external batteries. Good last time when using within reasonable temperature like 20-40 watts. Which is what I bought 3 of them for. Good IMREN-
Satisfied with my purchase of four IMREN 35mah 30amp. I was in need of new batteries and consider IMR a good seller. I appreciate the safety warnings as well.
Never heard of this company before, but was recommended on a forum so I tried them and they are great for the wand IH I use at least so far. I can't speak to longevity just know they work so much better then the batteries that came with the unit. I would recommend them to others which I have already.
Excellent batteries. Can't beat em.
Amazing batteries. Very long lasting life throughout the day. I :100: recommend this battery.
These are the best batteries I've used so far with my Smok Scar-18! They hold a good charge for at least 2.days before needing re-charge
These are pretty good battery's, I buy again but LG HG2 INR 18650 3000mAh Last a little longer
Great battery, better than any other brand.
Great product. Looked for these batteries for a long time couldn't find them anywhere. Until I saw your site. Also Great price will definitely order from them again.
Replacement for old batteries for my vape. I'm a thrifty shopper (translate as "cheapskate") and looked all over before buying. Great communications, fast shipping, unbeatable price for the product. Best battery site around.
Best 18650 batteries in my opinion. IMR has the best selection and prices in my opinion.
Great replacement batteries that saved me from having to buy a whole new electric screwdriver!