Voltage Category
18.5V Lithium Battery Manufacturer
5S lithium pack. Suits higher-output portable tools and larger UAV platforms requiring increased power with controlled weight.
Voltage Spec
- Nominal Voltage
- 18.5V
- Chemistry
- Lithium (Semi Solid)
- Cell Formats
- Pouch, Prismatic, Cylindrical
Overview
What is a 18.5V Lithium Battery?
An 18.5V lithium battery is a five-cell series (5S) configuration with a nominal voltage of 18.5V and a maximum charge voltage of 21V. The 5S format fills the performance gap between 4S and 6S packs, providing increased motor voltage over a 14.8V system without the additional weight of a full 6S configuration. This voltage range is used in professional-tier cordless tools, larger UAV platforms optimised for 5S motor windings, and portable power stations where pack output voltage is a design constraint.
Applications
Common applications for 18.5V Lithium Battery cells
Application
High-Output Cordless Tools
Professional cordless tools requiring sustained high torque under load specify 18.5V packs to maximise motor efficiency and maintain consistent output through heavy-duty work cycles.
Application
Large-Format UAV Platforms
Heavier UAV frames carrying payload sensors or spray systems use 5S packs when motor KV ratings deliver optimal thrust efficiency in the 18 to 21V operating band.
Application
Portable Power Stations
Mid-capacity portable power stations targeting power-hungry AC inverter loads use 18.5V cell strings as the basis for compact, efficient inverter pack designs.
OEM & Custom
Custom 18.5V Lithium Battery packs from antbattery
antbattery supports OEM and custom development programs for 18.5v lithium battery cells and packs. Projects range from single-cell modifications to multi-cell assemblies with integrated BMS, connectors, and full export documentation.
- Custom cell dimensions, capacity, and tab configuration to match your enclosure
- PCM / BMS integration with SMBus, I²C, and UART protocol support
- UN38.3, IEC 62133, CE, RoHS, and MSDS documentation for all cells
- Air freight and customs clearance paperwork prepared on request
- OEM sampling in 4 to 6 weeks from design confirmation
- Minimum 100 cells for sample evaluation — no large MOQ required
Certifications
- Transport Safety
- UN38.3
- Product Safety
- IEC 62133
- Market Access
- CE, RoHS
- Shipping Docs
- MSDS / SDS
- Lead Time
- 4 – 6 weeks
- Sample MOQ
- 100 cells
Products
18.5V Lithium Battery lineup
No products currently listed for this voltage category.
Browse all productsWhy antbattery
Key advantages
Energy
High Energy Density
Semi-solid electrolyte design enables energy densities above 300 Wh/kg — measurably higher than conventional liquid electrolyte cells of equivalent format and chemistry.
Safety
Reduced Flammability
Semi-solid cells use significantly less liquid electrolyte than conventional cells, reducing the flammable material available during a thermal event and lowering thermal runaway propagation risk.
Certifications
Export-Ready Documentation
UN38.3, IEC 62133, MSDS, and supporting export documentation available for all cells. antbattery handles the certification paperwork required for air freight and customs clearance.
OEM Support
Custom Cell and Pack Formats
Custom cell dimensions, capacity ranges, tab configurations, and pack-level BMS integration available for OEM programs. Sampling typically ships within 4 to 6 weeks of design confirmation.
Related Articles
Related news
Technology Guide
How Does a Solid State Battery Work? A Clear Guide to Ions, Interfaces, and Limits
A solid state battery works by moving lithium ions between the cathode and anode through a solid electrolyte instead of a liquid one. The hard part is not the basic electrochemistry. It is keeping transport fast, interfaces stable, and solid layers in contact while the cell cycles.
June 18, 2026
Definition Guide
What Is a Solid State Battery? From a Solid State Battery Manufacturer View
A solid state battery uses a solid electrolyte instead of the liquid electrolyte found in conventional lithium-ion cells. This guide explains what that means, why the technology matters, where the main advantages come from, and why commercialization still takes time.
June 3, 2026
Market Reality Check
What Vehicles in the US Are Using Solid State Batteries?
As of June 5, 2026, no mass-produced customer vehicle sold in the US is confirmed to use a true all-solid-state battery. The real market story is a mix of prototypes in the US pipeline and faster semi-solid commercialization in China.
June 5, 2026
Other Voltages
Related products
3.2V Lithium Battery
LiFePO4 nominal voltage range. Common in stationary storage and solar backup applications where cycle life takes priority over energy density.
3.7V Lithium Battery
Standard lithium-ion single-cell voltage. Used across EV pouch cells, portable power stations, and cylindrical formats where high energy density is the primary driver.
3.8V Lithium Battery
Higher-voltage single-cell chemistry offering improved energy density. Found in premium EV and UAV applications where pack-level efficiency matters.
7.4V Lithium Battery
2S lithium pack voltage. Widely used in compact consumer electronics, power tools, and small UAV systems that need a simple two-cell series configuration.
Ready to source