3S Li-ion CC/CV Li-ion 12.6V 2A Battery Charger

Accelerate your global market entry with a zero-risk charging solution. KSPOWER’s 12.6V 2A Smart Charger is the definitive “Universal Choice” for 3S Lithium-ion and LiFePO4 battery packs. Engineered for portable power tools, medical devices, and e-mobility, this charger eliminates regulatory hurdles with a full suite of global certifications (UL, CE, KC, PSE, SAA, UKCA). Whether your product requires a space-saving wall-mount, a stable desktop hub, or a flexible cord-to-cord configuration, we provide the 1:1 technical alignment and certified safety needed to protect your brand’s reputation worldwide.

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The 12.6V 2A Lithium Battery Charger is a precision CC/CV (Constant Current / Constant Voltage) smart charger from KSPOWER’s LiFePO4 & Lithium-ion Chargers series — purpose-built for 3S Li-ion / Li-Polymer battery packs (three 4.2V cells in series, 12.6V full charge voltage). It delivers a safe, complete charging cycle with automatic CC-to-CV transition, protecting cell health and maximizing cycle life.

Designed for global markets, the charger is certified to UL, CE, KC, PSE, SAA and UKCA safety standards — with universal AC input 100-240VAC covering every major market with a single SKU. The fully enclosed plastic case is available in three mounting styles — wall plug, desktop or open lead wire — so integrators can choose the exact form factor for their application.

CC/CV Smart Charging Profile

The charger implements a two-stage constant current / constant voltage (CC/CV) charging algorithm — the industry-standard safe charging profile for lithium batteries:

StageWhat HappensBattery StateLED
Stage 1 — CC (Constant Current)Charger delivers constant 2.0A current; voltage rises gradually toward 12.6V0% – 80% charge (bulk charge)Red LED ON
Stage 2 — CV (Constant Voltage)Voltage holds at 12.6V; current tapers down automatically as battery approaches full80% – 100% charge (absorption)Red LED ON
Stage 3 — Charge CompleteCurrent drops below termination threshold; charging stops automatically100% fullGreen LED ON

This precision profile prevents over-charging (lithium plating), over-voltage stress and electrolyte degradation — protecting your battery investment and extending pack cycle life. ±0.5% voltage accuracy ensures a true full charge without cell damage.

Key Features

  • One-Stop Global Certification: Pre-certified for North America, Europe, Japan, Korea, Australia, and the UK.
  • Versatile Housing Design: Choose from Wall Mount (fixed plug), Desktop (IEC C6/C8/C14), or Cord-to-Cord types to fit your device’s ergonomics.
  • Smart LED Indicators: Intuitive Red (Charging) to Green (Fully Charged/Standby) visual feedback.
  • High Efficiency & Low Ripple: Advanced switching technology for cool operation and stable DC output.
  • Industrial Safety Suite: Built-in protection against short circuits, over-load, over-voltage, and reverse polarity.
  • Premium Plastic Case: High-impact, flame-retardant V0-grade ABS housing.

Specification & Form Factor Matrix

ParameterTechnical DetailForm Factor Options
Output Voltage12.6V DCWall Mount: Fixed US/EU/UK/AU/KR/JP Plugs
Output Current2.0ADesktop Type: C6, C8, C14 AC Inlets
Input Range100-240V ACCord-to-Cord: Flexible input/output lead design
Power Rating25.2 WattsDC Connector: Customizable (5.5*2.1mm standard)

8 Safety Protections

Charging lithium batteries demands rigorous safety engineering. The 12.6V 2A charger integrates eight independent protection layers that monitor input and output conditions in real time:

  • Over Voltage Protection (OVP): output voltage clamped — prevents over-charging damage to cells
  • Over Current Protection (OCP): output current foldback — protects charger and battery from excessive current
  • Short Circuit Protection (SCP): immediate shutdown on output short — latch-free auto recovery after fault clears
  • Over Temperature Protection (OTP): thermal shutdown at high temperature — protects charger and environment
  • Reverse Polarity Protection: safeguards against incorrect battery connection (on models with polarity sensing)
  • Input Surge Protection: absorbs AC mains transients — increases reliability in unstable grid regions
  • No-Load Protection: safe idle state with <1.0W standby consumption — leaves battery untouched when not charging
  • Auto Cut-Off at Full Charge: current termination at CV stage — prevents over-charging after 100%

Application Scenarios

ApplicationBattery PackCase StyleWhy This Charger
Cordless Power Tools3S Li-ion (12V-class)Desktop / Wall PlugCC/CV full charge; tool-grade durability; UL/CE/KC
E-Bike / E-Scooter3S Li-ionWall PlugCompact wall plug; global plug options; Level VI
Robotics & AGV3S Li-ionOpen Lead WireLead wire style for built-in charging; SAA/UKCA for export
Medical Devices3S Li-ion / LiPoOpen Lead WireBuilt-in lead wire; 8 protections; PSE for Japan
Home Appliances3S Li-ionWall PlugSpace-saving plug-in; red/green status LED
Security & Monitoring3S Li-ionDesktopBenchtop style; reliable CC/CV; FCC/CE
Toys & Hobby (RC)3S LiPoDesktopPrecision 12.6V termination protects LiPo packs
Portable Instruments3S Li-ionWall Plug / DesktopUniversal input; KC/PSE for Asia markets

OEM / ODM Customization

  • Custom DC connector: Molex, JST, Anderson, XT60, barrel 5.5×2.1mm, or any proprietary connector
  • Custom DC cable length: 1.2m standard; any length up to 3m available
  • Custom AC plug: US / UK / AU / EU / KR / CN or proprietary plug standards
  • Case style selection: wall plug / desktop / open lead wire — choose per application
  • AC inlet option: IEC320-C8 (Class II) or C6/C14 (Class I with earth pin)
  • Custom output voltage/current: full series 4.2V-42V, 4.2W-150W with matching charge profiles
  • Private label / custom logo and packaging: free for orders >= 1000 pcs
  • Custom LED indicator behavior and enclosure color (black/white standard)
Does this charger support both Lithium-ion and LiFePO4 batteries?
While the 12.6V voltage is specifically tuned for 3-series (3S) Lithium-ion packs, we can calibrate the output voltage and charging curve for LiFePO4 (typically 14.4V for 4S) or other configurations upon request. As a factory, we provide 1:1 technical tuning for your specific battery chemistry.
This is our “Global Access” advantage. It allows you to use the same power charger for your products sold in Korea, Japan, Australia, the UK, and the US. This drastically simplifies your inventory management (one SKU for global markets) and ensures your brand meets local safety laws without expensive re-testing.
CC/CV (Constant Current / Constant Voltage) is the industry-standard safe charging algorithm for lithium batteries, and this charger implements it with ±0.5% voltage accuracy: Stage 1 (CC): the charger delivers a constant 2.0A current while voltage rises toward 12.6V — this provides fast bulk charging up to ~80%. Stage 2 (CV): the voltage is held precisely at 12.6V while current automatically tapers down — this prevents over-voltage stress and lithium plating during the final 20%. Stage 3 (termination): when current drops below the threshold, charging stops — preventing over-charging. Combined with 8 independent protections (OVP/OCP/SCP/OTP etc.), this ensures the battery is never over-charged, over-currented, or short-circuited — maximizing cycle life and safety.

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