C Size Battery Charger

C Size Battery Charger – Dedicated Chargers for C-Size Cylindrical Cells, Precision Charging Management for High-Capacity Devices

Welcome to our C Size Battery Charger collection. The C battery (IEC standard LR14/R14, approx. 25–26mm diameter × 49–50mm length) is a mainstream cylindrical battery format second only to D-size in physical size. Thanks to its moderate volume and excellent capacity, C batteries are widely used in high-lumen flashlights, portable radios/boomboxes, electric toys, gas water heaters, medical devices, industrial testing instruments, and various high-drain portable equipment.

Rechargeable C batteries on the market primarily utilize NiMH (1.2V, typical capacity 3000mAh–5000mAh) and NiCd (1.2V) chemistries. With the proliferation of regulated lithium technology, 1.5V regulated Li-ion C batteries (up to 5000mWh, USB-C direct charging, 1,000+ cycles) have also become popular choices for powering premium devices.

With a diameter of ~25–26mm and length of ~49–50mm, C batteries cannot fit into standard AA/AAA charger bays, and some 18650-only chargers may not securely grip their length. Therefore, selecting a charger that explicitly supports C size and features wide-range adjustable sliders with secure spring-clamp designs is essential. This collection features high-quality chargers from global professional brands like ANSMANN, Nitecore, RS PRO, and Zanflare that are explicitly compatible with C batteries—ranging from 2-bay portable chargers to 8-bay multi-function chargers—ensuring your C batteries are recharged in the safest, most efficient, and most precise manner.

C Size Battery Key Specifications

Parameter	NiMH	NiCd	1.5V Regulated Li-ion
Nominal Voltage	1.2V	1.2V	1.5V (regulated output)
Full Charge Voltage	1.45V–1.5V	1.45V–1.5V	4.2V (internal cell) / 1.5V (output)
Typical Capacity/Energy	3000mAh – 5000mAh	1800mAh – 2500mAh	3500mWh – 5000mWh (equiv.)
Dimensions (Dia. × Length)	~25–26mm × 49–50mm	~25–26mm × 49–50mm	~25–26mm × 50mm
Recommended Charge Current	0.5A – 1.5A	0.1C–0.3C	0.3A – 0.5A (USB direct)
Cycle Life	500–1,000 cycles	~500 cycles	1,000+ cycles
Typical Applications	Flashlights, radios, electric toys	Industrial equipment, emergency lighting	Premium flashlights, precision medical devices

C Size vs. Other Common Formats – Size Comparison

Parameter	C Size	AA	D Size	18650
Dimensions	25–26mm × 49–50mm	14mm × 50mm	32–34mm × 61mm	18mm × 65mm
Typical Capacity	1800–5000mAh	600–2800mAh	8000–20000mAh	1500–3500mAh
Diameter	25–26mm	14mm	32–34mm	18mm
Length	49–50mm	50mm	61mm	65mm
Key Characteristics	High capacity, moderate size	Most standardized, universal	Ultra-high capacity, extended runtime	Li-ion benchmark
Typical Applications	High-drain portable devices	Remotes, digital cameras	Flashlights, gas equipment	Universal across all categories

Core Advantages of C Size Battery Chargers

• Perfect Size Compatibility with Secure Fit: C batteries measure ~25–26mm in diameter and ~49–50mm in length. Standard AA chargers are too narrow, and some 18650-only chargers may not securely grip 50mm-long cells. Chargers in this collection are explicitly labeled as supporting C size and feature adjustable sliders with travel that perfectly accommodates 49–50mm length and bay widths that comfortably fit 25–26mm diameter cells, ensuring secure contact and preventing charging interruptions or high contact resistance.
• Multi-Chemistry Auto-Detection & Compatibility: Chargers in this collection generally support automatic detection of multiple chemistries including 1.2V NiMH, 1.2V NiCd, and 3.7V Li-ion. The ANSMANN Powerline 4 Ultra allows manual selection of charge programs via the "Mode" button and charge current via the "Current" button (500mA–2000mA adjustable), even supporting capacity testing and discharge functions. Nitecore Ci2, D4, and UMS4 models automatically recognize Li-ion and NiMH/NiCd cells and select the appropriate voltage and charging mode.
• Precision Adaptive Charging Current: C batteries span a wide capacity range (NiMH ~3000mAh–5000mAh, NiCd ~1800mAh–2500mAh), with recommended charging currents of 0.5A–1.5A. These chargers support adaptive or manually adjustable currents to prevent damage from excessive current. The Zanflare C4 supports four selectable current settings (300mA/500mA/700mA/1000mA) with independent per-slot selection. The ANSMANN Powerline 4 Ultra supports multiple adjustable currents (500mA/1000mA/1500mA/2000mA).
• CC/CV & -ΔV/dV/dt Smart Charging Management: Utilizes constant-current/constant-voltage (CC/CV) charging profiles for lithium cells and -ΔV/dV/dt termination for NiMH/NiCd cells. Controlled by built-in microprocessors (MCU), the charger automatically detects battery status and precisely controls charging current and cut-off voltage. Typical cut-off accuracy reaches 4.2V ±0.05V (Li-ion) or 1.48V ±1% (NiMH/NiCd), automatically terminating upon full charge to prevent overcharging and maximize cycle life.
• Independent Charging Channels – Worry-Free Mixed Charging: Multi-bay chargers feature independently controlled channels, allowing simultaneous charging of different battery sizes and chemistries—mix C, AA, AAA, D, 18650, 21700, 26650, and other cell sizes without interference. The ANSMANN Powerline 4 Ultra features individually monitored charging slots, allowing mixed charging of different types, capacities, and charge levels. The Zanflare C4's 4 slots work completely independently, with simultaneous selection of different charge currents and modes (CHARGE, FAST TEST, NOR TEST).
• Multiple Safety Protections: Built-in protections against overcharge, over-discharge, overcurrent, short-circuit, reverse polarity, overheat, and charge timeout ensure comprehensive charging safety. Most products feature ABS/PC fire-retardant housing and are certified to CE, FCC, and RoHS international safety standards. Reverse-polarity and deeply discharged batteries (NiMH <0.2V / Li-ion <2.0V) are automatically detected and rejected, effectively preventing damage.
• LCD Display & Advanced Features: Mid-to-high-end models feature high-definition LCD screens displaying real-time charging voltage, charging current, charging time, accumulated capacity, and internal resistance. The Zanflare C4 allows independent viewing of voltage (V), current (mA), time (h), capacity (mAh), and internal resistance (mR) per slot via dedicated digital keys. The ANSMANN Powerline 4 Ultra's LCD display clearly shows voltage, charge/discharge current, capacity, and charging time per slot, with channel toggling via the "Channel" button.
• 1.5V Regulated Li-ion C Battery USB Direct Charging Convenience: Some C batteries in this collection feature 1.5V regulated Li-ion technology with built-in USB-C charging ports, eliminating the need for a dedicated charger—simply recharge using a phone charger, power bank, or computer USB port. The PKCELL 5000mWh USB rechargeable C battery delivers a stable 1.5V output for high-drain, mission-critical devices. The BESTON 1.5V C battery offers 3500mWh capacity with USB-C direct charging, LED charging status indicators, and 1,000+ cycles.

Popular C Size Battery Charger Models – Quick Reference

Category	Model	Bays	Charge Current	Features
4-Bay Professional	ANSMANN Powerline 4 Ultra	4 (max 3× C)	500mA–2000mA selectable	Manual mode/current selection, capacity test, discharge function, LCD display, USB output
8-Bay Smart Charger	Nitecore i8	8	0.5A–1.5A adaptive	8 independent channels, Li-ion/NiMH/NiCd, C/D/AA/AAA compatible
4-Bay Smart Charger	Nitecore D4	4	375mA×4 / 750mA×2	Independent channels, HD LCD, Li-ion/LiFePO₄/NiMH/NiCd, C-size compatible
2-Bay Fast Charger	Nitecore Ci2	2	Up to 3A (single bay)	USB-C input, QC/PD fast charge, auto chemistry detection, C/D compatible
4-Bay Smart Charger	Nitecore UMS4	4	Up to 3A (single bay)	USB-C input, auto IR detection & health display, C/D/AA/AAA/18650/21700 compatible
4-Bay Analyzer Charger	Zanflare C4	4	300mA–1000mA selectable	LCD display, IR detection, capacity test, power bank function, SC/C compatible
4-Bay Universal Charger	RS PRO 4-Bay Charger	4	300mA–1000mA selectable	Explicitly supports C size, independent per-slot settings, overcharge/overvoltage/short protection

Typical Specifications Range (C Size Battery Chargers)

Parameter	Typical Range
Input Power	USB 5V / Type-C / QC3.0 / PD / DC 12V / AC 100–240V
Charge Cutoff Voltage	4.2V ±0.05V (Li-ion) / 1.48V ±1% (NiMH/NiCd)
Charge Current Range	0.3A – 3A (adjustable/adaptive)
Supported Cell Sizes	AAAA / AAA / AA / A / SC / C / D / 10440 / 14500 / 16340 / 18650 / 21700 / 26650, etc.
Protection Features	Overcharge, over-discharge, overcurrent, short-circuit, reverse polarity, overheat, charge timeout
Display Type	LED indicators / LCD digital display
Operating Temperature	0°C – 40°C

Typical Applications

Application Scenario	Recommended Charger	Why
Travel / on-the-go charging for C-size 1.5V Li-ion cells	USB Direct-Charge Battery + Power Bank	No dedicated charger needed; Type-C plug-and-charge, ultra-portable
Daily home use, charging 1–4 C-size NiMH/NiCd cells	4-bay smart charger (Nitecore D4 / RS PRO)	Independent channels, HD LCD, simple and reliable operation
Multi-device user; mix charging C, AA, 18650 together	4-bay professional charger (ANSMANN Powerline 4 Ultra / Nitecore UMS4)	Multi-size & multi-chemistry compatible, adjustable current, one charger does it all
Professional user; need capacity & IR testing for cell matching	4-bay analyzer charger (Zanflare C4 / ANSMANN Powerline 4 Ultra)	Capacity test mode, IR detection, precise matching
Battery pack assembly / multi-device user; need batch charging	8-bay smart charger (Nitecore i8)	8 independent channels, auto-detection, highly efficient

How to Choose the Right C Size Battery Charger?

Your Requirement	Recommended Type	Suggested Model
I only charge C-size NiMH/NiCd cells and want simplicity & reliability	4-bay smart charger	Nitecore D4, RS PRO 4-Bay
I need to mix charge C, AA, 18650 of multiple sizes and chemistries	4-bay professional charger	ANSMANN Powerline 4 Ultra, Nitecore UMS4
I want real-time charging data monitoring and battery health insights	4-bay analyzer charger	Zanflare C4, ANSMANN Powerline 4 Ultra
I need to test capacity and IR for cell matching	4-bay analyzer charger	Zanflare C4, ANSMANN Powerline 4 Ultra
I need to charge multiple cells (4+) simultaneously	8-bay smart charger	Nitecore i8
I use 1.5V regulated Li-ion C batteries and want maximum convenience	USB Direct-Charge Battery	PKCELL 5000mWh, BESTON 3500mWh (Type-C direct charge)
I need bulk quantities or custom charging solutions	Contact our sales team	—

⚠️ C Size Battery Charger Safety Guidelines

• Verify Explicit C Size Compatibility: C batteries measure ~25–26mm in diameter and ~49–50mm in length. Before purchase, confirm the charger specifications explicitly list C size support, or that the slider adjusts to ~49–50mm and the bay securely grips 25–26mm diameter cells. Some chargers have reduced simultaneous capacity when charging C batteries (e.g., ANSMANN Powerline 4 Ultra can charge up to 3 C batteries simultaneously).
• Distinguish Battery Chemistry: 1.2V NiMH/NiCd (full charge 1.48V) and 3.7V Li-ion (full charge 4.2V) require different modes—do not mix. Ensure the charger has correctly identified or manually set the appropriate mode before charging. Never charge a NiMH/NiCd battery with a Li-ion charger, or vice versa—this can lead to overheating, reduced lifespan, or even safety hazards.
• Select Appropriate Charge Current: C-size NiMH cells charge best at 0.5A–1.5A, and NiCd cells at 0.1C–0.3C. If manual setting is available, select an appropriate current based on battery specifications. High currents (e.g., above 2A) may be too high for smaller-capacity NiCd C cells and accelerate aging.
• Avoid Extreme Temperature Charging: The ideal charging temperature for batteries is 10°C–45°C. Never charge batteries below freezing (0°C/32°F)—this can cause permanent, dangerous metallic lithium plating inside lithium cells. Keep away from heat sources and direct sunlight; ensure good ventilation during charging.
• Avoid Overcharge and Over-Discharge: Although chargers feature auto-termination, keeping batteries at 100% charge for extended periods accelerates aging. Avoid deep discharge below 2.5V (Li-ion) or 1.0V (NiMH/NiCd).
• Remove After Full Charge: Prolonged connection to power may still affect battery longevity. Remove batteries promptly after charging.

Why Choose Our C Size Battery Chargers?

• Genuine Brand Products: Chargers from ANSMANN, Nitecore, RS PRO, Zanflare, and other global professional charger brands—reliable quality with full safety certifications.
• Precisely Compatible with C Size: Curated selection of models explicitly labeled as supporting C size—eliminates compatibility issues.
• Multi-Chemistry Compatibility: Select models support NiMH, NiCd, and Li-ion batteries—one charger for multiple needs.
• One-Stop Shopping: C batteries, chargers, and accessories all in one place—save time and effort.
• Flexible Purchasing: Single-unit retail and bulk wholesale options available for both individual and enterprise needs.
• Certified & Safe: CE, FCC, RoHS certifications ensure quality and safety.
• Expert Technical Support: Guidance on charger selection, usage tips, and after-sales support.

👇👇👇 Browse the product list below to find the perfect C Size Battery Charger for your needs. For volume quotes or technical inquiries, please contact our customer service team.