
Key Features — Why Professionals Choose ASOL
🔋 Long-Lasting 2600mAh Capacity
With 2600mAh of energy density, the ASOL 18650 battery provides extended run time between charges. Users enjoy 2–4 weeks of daily brushing on a single charge — reducing charging frequency and enhancing the overall experience.
⚡ Stable 2.6A Discharge Performance
Consistent power output is critical for electric toothbrush motors. The ASOL battery’s stable 2.6A discharge current ensures smooth, steady motor RPM throughout the entire charge cycle — no weak performance as the battery depletes.
🛡️ Multi-Layer Safety Protection
Safety is non-negotiable in personal care devices. This battery integrates comprehensive protection mechanisms:
- ✅ Over-charge protection
- ✅ Over-discharge protection
- ✅ Over-current protection
- ✅ Short-circuit protection
- ✅ Over-temperature protection
Rest easy knowing your device — and your customers — are protected.
📐 Compact & Lightweight Design
At only 66 × 18.6 × 18.6 mm and weighing just 46g, this battery fits seamlessly into slim-profile electric toothbrush handles. No added bulk. No compromise on ergonomics.
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 |
Perfect Applications
🪥 Electric Toothbrushes
The primary use case — and our specialty. The ASOL 18650-2600mAh is the ideal power source for electric toothbrushes, delivering reliable, consistent performance session after session. Trusted by leading oral care brands worldwide.
💆♀️ Personal Care Devices
Beyond toothbrushes, this battery is versatile enough for a range of personal care devices that demand dependable, rechargeable power — including water flossers, facial cleansing devices, and massagers.
✈️ Travel-Friendly
Weighing only 46g with a compact form factor, this battery is perfect for travel-sized electric toothbrushes. Your oral care routine shouldn’t be compromised on the road.
🧠 Smart Oral Care Integration
Compatible with advanced smart toothbrush models that require consistent power delivery for connectivity features, pressure sensors, and multiple brushing modes.
Who Is This Battery For?
| Customer Type | How ASOL Helps |
|---|---|
| 🏭 Electric Toothbrush Manufacturers | Reliable OEM battery supply with consistent quality for mass production |
| 🔧 Brand Owners & Product Designers | A dependable power solution that enhances your product’s reputation |
| 📦 Distributors & Wholesalers | High-margin, fast-moving product with strong repeat purchase rates |
| 🛠️ Repair & Replacement Market | Premium replacement battery for popular electric toothbrush models |
Why Quality Matters: The ASOL Difference
Not all 18650 batteries are created equal. Here’s what sets ASOL apart:
- Factory-Tested Every Unit — Every cell undergoes individual capacity, voltage, and internal resistance testing before shipping
- Consistent Voltage Matching — Cells are matched within ±0.05V for predictable, stable performance
- Professional Tab Welding — Pre-welded tabs ensure secure, reliable connections during assembly
- UN38.3 Certified — Safety tested and certified for international shipping
Bulk Orders & OEM Services
Looking for a long-term battery supplier for your electric toothbrush production line? ASOL offers:
- 📦 Wholesale Pricing — Competitive rates starting at 100+ units
- 🏷️ Custom Branding — Logo printing and branded packaging available
- 📐 OEM/ODM Support — Tailored specifications for your unique product requirements
- 🚢 Global Shipping — Reliable logistics to manufacturers worldwide
Frequently Asked Questions (FAQ)
Q: Is this battery compatible with my electric toothbrush model? A: 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.
Q: How many times can I recharge this battery? A: 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.
Q: Is this battery safe to use in personal care devices? A: Yes. The ASOL 18650-2600mAh is certified with UN38.3, MSDS, CE, and 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.
Q: Can I get samples before placing a bulk order? A: Absolutely. We offer free sample evaluation for qualified buyers. Contact us to request your sample today.
Q: Do you offer international shipping? A: Yes. We ship globally via trusted logistics partners including DHL, FedEx, and sea freight. Shipping costs and lead times vary by destination.
Technical Deep Dive
How 2600mAh Translates to Real-World Usage
| Usage Scenario | Estimated Sessions per Full Charge |
|---|---|
| 2-minute brushing, 2x daily | ~40–60 sessions |
| Travel mode (3-minute brushing, 3x daily) | ~20–30 sessions |
| Smart toothbrush with LED modes | ~25–40 sessions |
Estimates based on typical electric toothbrush motor draw of 1–2W. Actual results may vary by device model and brushing mode.
Cycle Life Explained
A “cycle” equals one full discharge followed by a full recharge. The ASOL 18650 maintains ≥80% capacity after 300 cycles under standard test conditions (0.2C discharge, 0.5C charge at 25°C). Partial charges do not consume full cycles — so topping up daily actually extends the battery’s effective lifespan.
🌍 Trusted by Manufacturers Worldwide
ASOL batteries power oral care products sold across North America, Europe, Southeast Asia, and the Middle East. Our commitment to consistent quality and reliable supply chains has made us a preferred partner for leading electric toothbrush brands.
“The ASOL 18650 cells have been our go-to battery for three consecutive product generations. Consistent quality, reliable supply, and competitive pricing — exactly what we need as we scale.” — Sourcing Director, Oral Care Manufacturer
Get Started Today
Ready to power your electric toothbrush line with the ASOL 18650-2600mAh lithium battery? We’re here to help.
📋 Free Sample Evaluation
Test battery quality and compatibility before committing to a bulk order.
💬 Talk to Our Team
Our battery specialists will answer your technical questions and help you select the right cell for your application.
📦 Request a B2B Quote
Get competitive pricing for your order volume — typically within 24 hours.
Contact Us
| info@asol-battery.com | |
| +86 15779858703 | |
| 🌐 Website | www.asol-battery.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 |






