What Is the 24 85 17 Battery and Where Is It Used?

The 24 85 17 battery is a high-performance lithium-ion cell commonly used in power tools, medical devices, and industrial equipment. With a nominal voltage of 3.6V and capacity of 4.0Ah, it offers superior energy density and thermal stability compared to standard 18650 cells. Its 24mm diameter and 85mm length make it ideal for space-constrained applications requiring sustained power output.

What Are the Primary Applications of 24 85 17 Batteries?

This battery powers professional-grade cordless tools (drills, saws), automated guided vehicles in warehouses, and portable medical ventilators. Its ISO 13849 safety certification makes it preferred for robotics requiring PL d safety levels. Recent applications include drone battery arrays and modular energy storage systems for solar installations.

Emerging applications now extend to marine technology, where these batteries power underwater inspection drones due to their pressure-resistant casing. Offshore wind farm maintenance crews use them in submersible lighting systems rated for depths up to 200 meters. The military sector employs 24 85 17 cells in portable communication arrays, where their rapid discharge capability supports high-power radio transmissions. Manufacturers are developing hybrid packs combining these cells with supercapacitors for elevator emergency systems, providing 72-hour backup power in high-rise buildings. A recent innovation in the automotive sector involves using clustered 24 85 17 batteries as starter modules for heavy machinery, demonstrating cold-cranking amps equivalent to traditional lead-acid batteries at 40% reduced weight.

Which Chargers Are Compatible With 24 85 17 Batteries?

Smart chargers with CC-CV (constant current-constant voltage) profiles and temperature monitoring are essential. Recommended models include the Delta Q XV-330 (42V DC input) and Bosch AL 1860 CV. Avoid using chargers exceeding 4.2V/cell cutoff voltage. Optimal charging occurs at 0.5C rate (2A) between 0°C-45°C ambient temperatures.

What Safety Features Protect 24 85 17 Batteries?

Multi-layer protection includes CID (current interrupt device), PTCR (positive temperature coefficient resistor), and venting membranes. The CID activates at 150kPa internal pressure, while PTCR limits current above 75°C. UL 1642-certified versions feature ceramic-coated separators that withstand 200°C without thermal shrinkage.

The third-generation safety systems incorporate graphene-enhanced separators that detect micro-shorts 60% faster than traditional polyethylene layers. Aerospace applications utilize a dual CID system that triggers at both 150kPa and 300kPa thresholds for redundancy in pressurized environments. Recent UL certifications now require flame-retardant electrolyte additives that reduce combustion intensity by 78% during failure events. Manufacturers have implemented cell-level fusing that isolates individual cells within 0.8 milliseconds of detecting abnormal current spikes. Field tests in mining equipment show these features prevent thermal runaway even when multiple cells are punctured simultaneously by rock debris.

“The 24 85 17 represents a shift toward application-specific cell engineering. Unlike generic batteries, its electrode stacking geometry optimizes power delivery for pulsed loads common in automation equipment. We’re seeing 30% fewer cell failures in UPS applications compared to previous generations.”

– Dr. Elena Voss, Battery Systems Engineer at PowerCell Solutions

FAQs

Does the 24 85 17 work in extreme temperatures?

Operational range spans -30°C to 60°C with reduced capacity below 0°C. Special low-temperature variants using lithium titanate anodes maintain 85% capacity at -40°C.

Is this battery compatible with Tesla Powerwall?

No. Powerwall uses proprietary 21700 cells. However, third-party energy storage systems like EcoFlow DELTA Pro support 24 85 17 in modular configurations.

How to test 24 85 17 battery health?

Use a battery analyzer like the Cadex C7400. Key metrics: internal resistance (should be <45mΩ), capacity retention (>80% of original), and voltage recovery time after load (<2 minutes).