The ASOL 18650 3.7V 2600mAh Lithium-ion Battery Cell for Electric Toothbrushes is a lithium battery rated at 3.7V / 2600mAh (9.62Wh) in a 1S1P configuration measuring 66 × 18.6 × 18.6 mm and weighing 46g. It is engineered to power Electric Toothbrush and similar devices, with a stable discharge curve and dependable cycle life. An integrated protection circuit guards against overcharge, over-discharge, and short circuit, and full OEM/ODM customization is available.
Key Features
Compact power, built to last
2–4 weeks of daily brushing on a single charge.
Steady motor RPM across the entire charge cycle.
Over-charge, over-discharge, over-current, short-circuit & temperature protection.
Just 66 × 18.6 × 18.6 mm and 46g for slim handles.
Product Specifications
| Specification | Details |
|---|---|
| Brand | ASOL |
| Model | 18650-2600mAh |
| Voltage | 3.7V (Nominal) |
| Capacity | 2600mAh |
| Configuration | 1S1P (Single Cell) |
| Dimensions | 66 × 18.6 × 18.6 mm |
| Discharge Current | 2.6A |
| Weight | 46g |
| Cycle Life | ≥300 cycles |
| Charging Temp | 0°C ~ 45°C |
| Discharging Temp | -20°C ~ 60°C |
| Certifications | UN38.3, MSDS, CE, RoHS |
Applications
Where the 1S1P is used
Reliable rechargeable power for daily oral-care brush sessions.
Water flossers, facial cleansers & handheld massagers.
Just 46g & compact — fits travel-sized toothbrushes.
Steady power for sensors, modes & app connectivity.
Frequently Asked Questions
Is this battery compatible with my electric toothbrush model?
The ASOL 18650-2600mAh uses the standard 18650 form factor (18.6mm diameter × 65mm length). If your toothbrush uses a removable 18650 cell or has a battery compartment of this size, it is likely compatible. Please verify your device's battery compartment dimensions before ordering.
How many times can I recharge this battery?
This battery is rated for 300+ full charge cycles while retaining at least 80% of its original capacity. With typical daily use, this translates to well over a year of reliable service.
Is this battery safe to use in personal care devices?
Yes. The ASOL 18650-2600mAh is certified with UN38.3, MSDS, CE, RoHS — meeting international safety standards for transport and environmental compliance. It also features built-in over-charge, over-discharge, over-current, short-circuit, and over-temperature protection.
How are evaluation requirements handled?
Sample evaluation may be available for selected cylindrical and lithium polymer battery projects, subject to specification review and product availability. Sample freight is paid by the customer. Include any evaluation requirements in Additional Requirements.
Do you offer international shipping?
Yes. We ship globally via trusted logistics partners including DHL, FedEx, and sea freight. Shipping costs and lead times vary by destination.
Contact Us
| info@asolbattery.com | |
| +86 15779858703 | |
| Website | www.asolbattery.com |
| Response Time | 24h on working days |
| Business Hours | Mon — Fri, 9:00 AM — 6:00 PM (GMT+8) |
| Urgent Orders | Call directly for priority support |
Need a different size or capacity? Explore ASOL’s full cylindrical battery range →
