KSC-35 Rapid Charger – Fast Power for Kenwood TK-3360

Product Description:

The PTC-35 Rapid Desktop Charger is a professional-grade replacement for the Kenwood KSC-35 charger, designed for fast, safe, and reliable charging of Kenwood portable two-way radios. It is fully compatible with Kenwood NX-320, TK-3360, TK-2200, TK-3200, and TK-3207 series radios. Supporting a range of Kenwood batteries—including KNB-24L, KNB-35L, KNB-40LC, KNB-55L, and KNB-57L—the PTC-35 ensures efficient power delivery and extended battery life. Advanced charging circuitry provides protection against overcharging, overcurrent, and overvoltage, ensuring safe operation in both professional and industrial environments.With a universal AC input (100–240V, 50/60Hz) and multiple plug options, it’s ideal for global users who need dependable charging performance anywhere.

Key Features:

Rapid Charging Performance: Quickly recharges Kenwood two-way radio batteries to minimize downtime.
Wide Compatibility: Works with NX-320, TK-3360, TK-2200, TK-3200, TK-3207, and related Kenwood radio models.
Intelligent Charging System: Automatically optimizes charging current and voltage for each battery type.
Comprehensive Protection: Built-in safeguards against overcharging, overcurrent, and overvoltage.
LED Charging Indicator: Clear status display for charging and full-charge notifications.
Global Voltage Support: 100–240V AC input for worldwide use with different plug options.
Durable Construction: Fire-resistant ABS housing ensures heat resistance and long service life.

The PTC-35 is a professional single-unit desktop station engineered to serve as a direct, high-performance replacement for the OEM Kenwood KSC-35 charger. It is designed to support the Kenwood NX-320, TK-2200, TK-3360, and TK-3207 series handhelds. Unlike generic universal chargers, this unit features a custom-molded charging pocket that securely locks specific Li-Ion battery models—such as the KNB-45L, KNB-55L, and KNB-57L—into place, ensuring a consistent electrical connection during the charge cycle. It functions effectively whether charging a standalone battery or a battery attached to the radio unit.

Internally, the charger is equipped with an intelligent microprocessor (MCU) that manages the charging algorithm. It automatically detects the battery status and regulates the current to prevent overheating or over-voltage spikes. The unit accepts a universal AC input (100–240V), making it deployable in any region without the need for voltage converters. Housed in V0-rated fire-resistant ABS plastic, this desktop radio charger is built to withstand the rigors of daily industrial use, extending the operational lifespan of your communication assets by maintaining optimal battery health.

Key Advantages

Intelligent MCU Voltage Regulation
Battery degradation is often caused by primitive charging circuits that continue to pump current after the cell is full. The PTC-35 utilizes a smart Micro Controller Unit (MCU) to monitor the voltage curve of the Li-Ion cells. It employs a specific algorithm to deliver a rapid charge current initially, then switches to a trickle maintenance mode once the battery reaches peak capacity. This precise power management prevents the "memory effect" and thermal stress that ruin batteries, ensuring your expensive KNB-57L packs last for more total cycles compared to using unregulated chargers.

Broad Fleet Compatibility
Managing a mixed fleet of Kenwood radios can be logistically complex. This charger consolidates your power needs by supporting a wide range of popular Kenwood series, including the analog TK-3200 series and the digital NX-320 series. Whether your team uses the older KNB-24L batteries or the newer high-capacity KNB-55L packs, the PTC-35 provides a unified charging solution. This versatility reduces the number of SKUs required in your inventory and ensures that any Kenwood two-way radio user can find a compatible charging spot at the end of a shift.

Rugged Fire-Retardant Construction
Chargers in security offices and warehouses are often left plugged in 24/7, posing a potential safety risk if built cheaply. The PTC-35 is constructed from high-quality ABS and Polycarbonate materials that meet V0 fire-retardant standards. This means the housing is self-extinguishing and resistant to high heat. Additionally, the robust casing protects the internal transformer from impact damage if knocked off a desk. This durable construction ensures the unit remains safe and operational in harsh commercial environments where equipment is frequently mishandled.

Use Scenarios

Campus Security & Patrols
University security teams operating Kenwood NX-320 digital radios require equipment that is ready at a moment's notice. The PTC-35’s rapid charging capability ensures that radios depleted during a long night patrol can be fully replenished quickly for the morning shift. The clear LED indicators allow officers to instantly verify if a unit is "Red" (charging) or "Green" (ready), preventing the accidental deployment of a dead radio during an emergency.

Retail and Logistics Warehousing
In fast-paced distribution centers using TK-3360 radios, devices are constantly grabbed and returned to the dock. The secure molded fit of the PTC-35 prevents batteries from sitting loosely in the cradle, a common issue that leads to uncharged radios. The 100-240V input also means this charger can be installed in facilities with varying power standards without risking damage to the device.

Construction Site Management
Site foremen using TK-2200 series radios face dusty and dirty conditions. The robust ABS housing of the PTC-35 wipes down easily and resists the ingress of grit that often jams inferior chargers. Its ability to charge the battery independently allows the foreman to keep a spare KNB-45L pack charging while using the radio, ensuring continuous communication during concrete pours or crane lifts where losing contact is dangerous.

Specifications

FAQ

Does this charger support Lithium-Ion batteries?
Yes, the PTC-35 is specifically designed to charge Li-Ion battery models such as the KNB-45L and KNB-55L used in Kenwood radios.

Can I charge the battery while it is attached to the radio?
Yes. The charging slot is designed to accommodate either the standalone battery pack or the full radio unit with the battery attached.

What do the LED lights indicate?
The LED status is intuitive: a solid Red light indicates the battery is currently charging, while a solid Green light confirms the charge is complete and the unit is in standby mode.

Does this charger work with 220V outlets?
Yes, the unit features a wide-voltage internal power supply (100V–240V AC), making it compatible with power outlets in the US, Europe, and Asia (plug adapter may be required).

Is the power adapter included?
Yes, the PTC-35 comes as a complete kit, including the desktop charging base and the appropriate AC power adapter.