Overview
The LiitoKala 35E 18650 3500mAh is a high-capacity Li-ion rechargeable battery engineered for stable 3.7V performance and extended lifespan. Featuring a flat-top design and internal resistance under 35mΩ, it ensures efficient power delivery and consistent reliability for portable electronics.
Main Features
- Nominal voltage: 3.7V, full charge at 4.2V, discharge cutoff at 2.5V
- High capacity of 3500mAh for long runtime
- Low internal resistance (<35mΩ) for stable current output
- Supports up to 1000 recharge cycles
- Integrated explosion-proof safety valve for secure operation
- Reliable performance under low temperatures
- Suitable for continuous discharge and general-purpose electronics
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | LiitoKala |
| Model | 35E |
| Type | Li-ion 18650 (Flat Top) |
| Capacity | 3500mAh |
| Voltage | 3.7V nominal / 4.2V charge / 2.5V discharge |
| Internal Resistance | <35mΩ |
| Recharge Cycles | Up to 1000 |
| Charge Voltage | 4.2V |
| Standard Charge Current | 0.5C |
| Max Discharge Current | 8A (typical) |
| Size | 18.3 × 65.0 mm |
| Weight | Approx. 48g |
Applications
Primary Uses
Ideal for Bluetooth speakers, POS machines, dash cameras, and portable massagers that require long-lasting Li-ion power with stable voltage output.
Extended Benefits
Supports integration into beauty instruments, handheld devices, and DIY battery packs for power tools and electronic projects needing reliable 18650 cells.
Compatibility / Upgrade
Fully compatible with LiitoKala smart chargers and battery management systems (BMS), making it suitable for replacing or upgrading existing 18650 Li-ion packs.
Product FAQ
Can this LiitoKala 35E battery be used in flashlights or recorders?
Yes, it supports devices like flashlights, dash cams, and other medium-drain electronics requiring 18650 Li-ion cells.
Is the 35E a protected or unprotected cell?
It is an unprotected flat-top cell, recommended for devices with built-in protection circuits.
How often should the LiitoKala 35E be charged?
Recharge when capacity drops to about 10–20%, avoiding full depletion for optimal battery health.
Can it operate in cold environments?
Yes, but performance may decrease temporarily in low temperatures; normal output restores after warming to room temperature.
What charger should be used with this battery?
Use a LiitoKala smart charger or other Li-ion compatible charger with protection and 4.2V cutoff control.






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