Description
Go further with every charge at an exceptional value. The Molicel M35A B-Grade is a high-capacity 18650 cell that delivers a class-leading 3500mAh capacity and a stable 10A continuous discharge. B-Grade cells are ideal for cost-sensitive projects, DIY battery packs, solar storage, and non-critical devices where maximum runtime matters but premium cell matching is not essential. The flat top design fits all standard spring-contact battery compartments, and the robust Molicel construction ensures reliable, long-lasting power cycle after cycle. When your device needs to run for days, the M35A delivers the endurance you need at a budget-friendly price. Available in Flat Top and Button Top options, with 2, 4, 6, 8, and 10 pack options to suit your needs.
Key Features
3500mAh Ultra-High Capacity: One of the highest energy densities in an 18650 cell. Perfect for applications that require long intervals between charges.
10A Continuous Discharge: Provides stable, clean power for medium-drain devices. Handles flashlight turbo modes, fast-charge power banks, and portable electronics without voltage sag.
B-Grade Cost-Effective Value: Offers the same 3500mAh capacity and 10A discharge performance at a more affordable price point. Ideal for DIY projects, solar storage, and bulk replacements where slight capacity variations are acceptable.
Exceptional Cycle Life: Retains ≥80% capacity after 500 charge/discharge cycles under recommended conditions, significantly outlasting generic cells and reducing long-term costs.
Flat Top & Button Top Options: Flat top is compatible with all standard 18650 spring-loaded chargers, flashlights, and battery trays, and easy to spot-weld for custom battery packs. Button top fits devices requiring a raised positive terminal.
Multiple Pack Options: Available in 2, 4, 6, 8, and 10 packs, ideal for stocking up, refreshing all the cells in your solar light array, or building large-capacity DIY power banks.
Parameters
| Parameter | Specification |
|---|---|
| Model | Molicel INR-18650-M35A (B-Grade) |
| Typical Capacity | 3500mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | 3300mAh (B-Grade tolerance) |
| Nominal Voltage | 3.6V (typical operating 3.7V) |
| Max Continuous Discharge | 10A (cell temperature ≤ 80°C) |
| Discharge Cut-off Voltage | 2.5V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1700mA) to 4.2V, cut-off 50mA |
| Internal Resistance | ≤ 40mΩ (AC 1kHz, B-Grade tolerance) |
| Cycle Life | ≥ 500 cycles (to 80% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Top Type | Flat Top / Button Top |
| Dimensions | Approx. 18.4mm diameter x 65.0mm length |
| Weight (single cell) | Approx. 48g |
| Pack Quantity | 2, 4, 6, 8, 10 Pcs |
Applications
Recommended For:
DIY Battery Packs & Solar Storage: Cost-effective for building custom battery packs and off-grid solar storage where slight capacity variations do not affect overall performance.
LED Flashlights & Headlamps: Medium to high modes benefit from the 3500mAh capacity, providing hours of continuous illumination.
High-Capacity Power Banks: Build a compact power bank with just two cells. The 10A rating supports standard USB-C PD fast charging.
Solar Garden Lights: Low current draw over long nights; the massive capacity ensures lights stay on until dawn.
Portable Fans & Camping Gear: Keep cool or illuminated on multi-day camping trips without worrying about recharging.
Not Recommended For:
Cordless Power Tools: Drills, impact drivers, and saws demand 15-40A continuous. Use dedicated high-drain cells like the Molicel P26A or P28A.
High-Power Vaping (Sub-Ohm / Mechanical Mods): These applications require 20-35A. The M35A is a capacity cell, not a high-drain cell.
Precision Medical Devices: For medical equipment requiring strict cell matching and ultimate reliability, we recommend A-Grade cells.
FAQ
Q1: What does B-Grade mean?
A: B-Grade cells are genuine Molicel cells that may have slight capacity variations or minor cosmetic imperfections compared to A-Grade. They still deliver the rated 3500mAh capacity and 10A discharge performance, but are sold at a lower price for cost-sensitive applications.
Q2: Can I use this battery in my power tool?
A: No. Power tools like cordless drills and impact drivers require much higher continuous current (often 20A or more). The M35A is rated for 10A max continuous discharge and will overheat and fail if used in such devices. For power tools, choose a high-drain cell like the Molicel P26A (35A).
Q3: Is this battery suitable for high-wattage vaping?
A: No. Sub-ohm vaping and mechanical mods typically demand 15-35A, well beyond the 10A rating of this cell. For vaping, we recommend dedicated high-drain cells such as the Molicel P28A or P30B.
Q4: What devices will benefit the most from this cell?
A: Any device that draws less than 10A and where you want to maximize runtime between charges: flashlights on medium/high, solar lights, USB power banks, DIY projects, and security cameras.
Q5: Is this a protected cell?
A: No, it is an unprotected flat top cell. For multi-cell packs, you must use an external BMS (Battery Management System). Most single-cell devices have built-in protection, but always verify.
Q6: Which terminal type should I choose?
A: Choose Flat Top for standard spring-contact devices and spot-welding battery packs. Choose Button Top for devices with recessed battery compartments or spring-loaded contacts that require a protruding positive terminal.
Q7: How many batteries come in one pack?
A: This product is available in 2, 4, 6, 8, and 10 pack options. Please select your desired quantity from the dropdown menu before adding to cart.
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