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ULTRALAST

ULTRALAST is a brand focused on rechargeable lithium-ion battery solutions, primarily serving the industrial and commercial sectors that require reliable portable power. The brand's product line centers on the 18650 battery format, a cylindrical cell widely used in applications ranging from handheld instruments to backup power systems. ULTRALAST offers both individual cells and multi-pack configurations, as well as dedicated battery chargers designed for the 18650 form factor. The batteries are specified at a nominal voltage of 3.7V DC, with capacity variants indicated by model numbers such as UL1865-26-1P and UL1865-34-1P, where the numeric suffix typically denotes capacity in ampere-hours (e.g., 2600 mAh or 3400 mAh). These cells are built to standard 18650 dimensions—18 mm diameter and 65 mm length—ensuring compatibility with existing equipment and battery holders. The chargers, including models like UL1865K-26 and ULLIONCHG, are engineered to safely charge lithium-ion cells, incorporating features such as constant current/constant voltage (CC/CV) charging profiles and overcharge protection. ULTRALAST products are suited for environments where consistent, rechargeable power is needed, such as in portable medical devices, industrial sensors, emergency lighting, and test equipment. The brand emphasizes practical specifications over marketing claims, providing clear voltage and chemistry data for engineering integration. 3G Electric supplies ULTRALAST batteries and chargers as part of its industrial equipment portfolio, offering multiple SKUs to accommodate different capacity and packaging requirements. The availability of single-cell and two-pack options allows procurement specialists to match inventory to usage patterns, while the charger models support both single-cell and multi-cell charging needs. All ULTRALAST products listed by 3G Electric are lithium-ion chemistry, which requires adherence to standard handling and shipping regulations for hazardous materials. For plant engineers and maintenance managers, ULTRALAST provides a straightforward, specification-driven power source that can be integrated into existing systems without proprietary connectors or communication protocols. The brand's focus on the 18650 platform means that replacement cells and chargers are readily interchangeable with other standard 18650 components, simplifying supply chain management. 3G Electric supports global logistics for these items, ensuring that ULTRALAST products can be sourced for facilities worldwide without geographic restrictions.

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About ULTRALAST

ULTRALAST is a brand focused on rechargeable lithium-ion battery solutions, primarily serving the industrial and commercial sectors that require reliable portable power. The brand's product line centers on the 18650 battery format, a cylindrical cell widely used in applications ranging from handheld instruments to backup power systems. ULTRALAST offers both individual cells and multi-pack configurations, as well as dedicated battery chargers designed for the 18650 form factor. The batteries are specified at a nominal voltage of 3.7V DC, with capacity variants indicated by model numbers such as UL1865-26-1P and UL1865-34-1P, where the numeric suffix typically denotes capacity in ampere-hours (e.g., 2600 mAh or 3400 mAh). These cells are built to standard 18650 dimensions—18 mm diameter and 65 mm length—ensuring compatibility with existing equipment and battery holders. The chargers, including models like UL1865K-26 and ULLIONCHG, are engineered to safely charge lithium-ion cells, incorporating features such as constant current/constant voltage (CC/CV) charging profiles and overcharge protection. ULTRALAST products are suited for environments where consistent, rechargeable power is needed, such as in portable medical devices, industrial sensors, emergency lighting, and test equipment. The brand emphasizes practical specifications over marketing claims, providing clear voltage and chemistry data for engineering integration. 3G Electric supplies ULTRALAST batteries and chargers as part of its industrial equipment portfolio, offering multiple SKUs to accommodate different capacity and packaging requirements. The availability of single-cell and two-pack options allows procurement specialists to match inventory to usage patterns, while the charger models support both single-cell and multi-cell charging needs. All ULTRALAST products listed by 3G Electric are lithium-ion chemistry, which requires adherence to standard handling and shipping regulations for hazardous materials. For plant engineers and maintenance managers, ULTRALAST provides a straightforward, specification-driven power source that can be integrated into existing systems without proprietary connectors or communication protocols. The brand's focus on the 18650 platform means that replacement cells and chargers are readily interchangeable with other standard 18650 components, simplifying supply chain management. 3G Electric supports global logistics for these items, ensuring that ULTRALAST products can be sourced for facilities worldwide without geographic restrictions.

Common Applications

  • Portable medical devices — ULTRALAST 18650 batteries (e.g., UL1865-34-1P) power handheld diagnostic tools and patient monitors.
  • Industrial sensors and data loggers — ULTRALAST 18650 cells (e.g., UL1865-26-2P) provide long-lasting rechargeable power for remote monitoring equipment.
  • Emergency lighting systems — ULTRALAST 18650 batteries (e.g., UL1865-34-2P) serve as backup power sources in exit signs and emergency luminaires.
  • Test and measurement equipment — ULTRALAST 18650 batteries (e.g., UL1865-26-1P) replace primary cells in multimeters, oscilloscopes, and calibration tools.
  • Portable lighting — ULTRALAST 18650 batteries (e.g., UL1865-34-1P) power high-intensity flashlights and headlamps used in maintenance and inspection tasks.
  • Battery pack assembly — ULTRALAST 18650 cells (e.g., UL1865-26-2P) are used as building blocks for custom battery packs in specialized industrial equipment.

Frequently asked questions

Common questions about ULTRALAST from 3G Electric.

What is the nominal voltage of ULTRALAST 18650 rechargeable batteries?

ULTRALAST 18650 rechargeable batteries have a nominal voltage of 3.7V DC. This is standard for lithium-ion cells of this form factor. The actual voltage range during operation is typically 4.2V at full charge down to approximately 2.5V to 3.0V at discharge cutoff, depending on the protection circuit and application requirements.

What capacity options are available for ULTRALAST 18650 batteries?

ULTRALAST offers 18650 batteries in at least two capacity variants: the UL1865-26 series, which typically provides 2600 mAh, and the UL1865-34 series, which typically provides 3400 mAh. These capacities are indicated by the numeric suffix in the model number. Both are available as single-cell (1P) or two-pack (2P) configurations.

Are ULTRALAST battery chargers compatible with all 18650 lithium-ion cells?

ULTRALAST battery chargers, such as the UL1865K-26 and ULLIONCHG, are designed specifically for 18650-size lithium-ion cells. They use the standard CC/CV charging algorithm suitable for Li-ion chemistry. While they are optimized for ULTRALAST cells, they can generally charge any standard unprotected 18650 Li-ion cell of similar capacity, provided the cell's voltage range matches the charger's output.

What is the difference between ULTRALAST model numbers UL1865-26-1P and UL1865-26-2P?

The difference is packaging quantity. UL1865-26-1P is a single 18650 battery with a capacity of approximately 2600 mAh. UL1865-26-2P is a two-pack containing two identical cells, each of 2600 mAh capacity. Both share the same voltage (3.7V DC) and chemistry (lithium-ion). The two-pack option is useful for applications requiring matched cells in series or parallel configurations.

Can ULTRALAST 18650 batteries be used in high-drain devices?

ULTRALAST 18650 batteries are standard lithium-ion cells with typical discharge rates suitable for moderate-drain applications such as flashlights, portable instruments, and backup power. For high-drain devices like power tools or high-output LED systems, you should verify the cell's continuous discharge current rating. The ULTRALAST product specifications do not explicitly list a maximum discharge current, so for high-drain uses, consult the manufacturer's datasheet or consider cells rated for higher discharge.

What safety features do ULTRALAST battery chargers include?

ULTRALAST battery chargers, including the ULLIONCHG model, are designed with standard lithium-ion charging safety features. These typically include overcharge protection (terminating charge at 4.2V), short-circuit protection, and reverse polarity protection. The chargers use a constant current/constant voltage charging profile to prevent overcurrent and overvoltage conditions. Always use the charger in a well-ventilated area and follow the manufacturer's instructions.