D Size Battery Charger

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

Welcome to our D Size Battery Charger collection. The D battery (IEC standard LR20/R20, approx. 32–34mm diameter × 61mm length) is the largest mainstream cylindrical battery format. Thanks to its substantial internal volume, D batteries can store far more electrochemical energy than AA or C cells—with single-cell capacities ranging from 8000mAh to 16000mAh—purpose-built for high-drain devices that demand extended, uninterrupted power. They are widely used in high-lumen flashlights, emergency lanterns, portable radios/boomboxes, electric toys, gas water heaters, medical devices, and various industrial testing instruments.

Rechargeable D batteries on the market primarily utilize NiMH (1.2V, typical capacity 3000mAh–16000mAh) and NiCd (1.2V) chemistries. With the proliferation of regulated lithium technology, 1.5V regulated Li-ion D batteries (up to 7400mWh, USB-C direct charging, 300+ cycles) have also become popular choices for powering premium devices.

With a diameter of ~32–34mm and length of ~61mm, D batteries cannot fit into standard AA/AAA/18650 chargers—their bays are too narrow and sliders too short. Therefore, selecting a charger that explicitly supports D size and features wide charging bays with extended slider travel is essential. This collection features high-quality chargers from global professional brands like XTAR, Nitecore, ANSMANN, and EBL that are explicitly compatible with D batteries—ranging from 2-bay portable chargers to 8-bay multi-function chargers—ensuring your D batteries are recharged in the safest, most efficient, and most precise manner.

D 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	5000mAh – 16000mAh	1800mAh – 5000mAh	6000mWh – 12000mWh (equiv.)
Dimensions (Dia. × Length)	~32–34mm × 61–62mm	~32–34mm × 61mm	~32–34mm × 61–62mm
Recommended Charge Current	0.5A – 2.0A	0.1C–0.3C	0.3A – 0.5A (USB direct)
Cycle Life	500–1,000 cycles	~500 cycles	300–1,200+ cycles
Typical Applications	Flashlights, radios, electric toys	Industrial equipment, emergency lighting	Premium flashlights, precision medical devices

D Size vs. Other Common Formats – Size Comparison

Parameter	D Size	C Size	AA	18650
Dimensions	32–34mm × 61mm	25–26mm × 49–50mm	14mm × 50mm	18mm × 65mm
Typical Capacity	1800–16000mAh	1800–5000mAh	600–2800mAh	1500–3500mAh
Diameter	32–34mm	25–26mm	14mm	18mm
Length	61mm	49–50mm	50mm	65mm
Key Characteristics	Ultra-high capacity, extended runtime	High capacity, moderate size	Most standardized, universal	Li-ion benchmark
Typical Applications	Flashlights, gas equipment	High-drain portable devices	Remotes, digital cameras	Universal across all categories

Core Advantages of D Size Battery Chargers

• Perfect Size Compatibility with Secure Fit: D batteries measure ~32–34mm in diameter and ~61mm in length. Standard AA/AAA/18650 chargers are too narrow and have insufficient slider travel. Chargers in this collection are explicitly labeled as supporting D size and feature wide charging bays (accommodating 32–34mm diameter cells) and extended slider travel (≥61mm), ensuring secure contact and preventing charging interruptions or high contact resistance. Confirmed D-size compatible chargers include: XTAR VC4 (fits D-cell batteries, USB-powered), XTAR VP4 Plus Dragon (charges 4× 32650/D batteries simultaneously, TC/CC/CV three-stage charging, selectable 0.5A/1.0A/2.0A currents, refresh function for NiMH/NiCd memory effect), Nitecore i8 (8 independent channels, Li-ion/NiMH/NiCd, D/C/AA/AAA compatible), Nitecore D2/D4 (AA/AAA/AAAA/C compatible, D-size confirmable), ANSMANN Energy 8 Plus (charges 1–4 C/D cells, microprocessor-controlled, -ΔV termination, faulty cell detection), and EBL multi-bay charger (1–4 AA/AAA/C/D compatible, LCD display, 3 modes: charge/discharge/error detect).
• Multi-Chemistry Auto-Detection & Compatibility: Chargers in this collection generally support automatic detection of multiple chemistries including 1.2V NiMH, 1.2V NiCd, 3.7V Li-ion, and 3.2V LiFePO₄. The XTAR VP4 Plus Dragon automatically identifies cell chemistry and applies CC/CV (for lithium) or -ΔV (for NiMH/NiCd) charging profiles accordingly, even supporting manual current selection and refresh function to eliminate memory effect. Nitecore D2/D4 chargers automatically recognize Li-ion and NiMH/NiCd cells and select the appropriate voltage and charging mode.
• Precision Adaptive Charging Current: D batteries span a wide capacity range (NiMH ~5000mAh–16000mAh, NiCd ~1800mAh–5000mAh), with recommended charging currents of 0.5A–2.0A. These chargers support adaptive or manually adjustable currents to prevent damage from excessive current. The XTAR VP4 Plus Dragon supports three selectable current settings (0.5A/1.0A/2.0A). The EBL charger supports AC/DC dual input with 1000mA×4 output (D/C slots). The ANSMANN Basic 5 Plus automatically adapts charging current (200mA for C/D slots)—ideal for safe overnight charging.
• CC/CV & -ΔV Smart Charging Management: Utilizes constant-current/constant-voltage (CC/CV) charging profiles for lithium cells and -ΔV 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. The XTAR VP4 Plus Dragon employs TC-CC-CV three-stage charging, monitoring battery state of charge for safer charging.
• Independent Charging Channels – Worry-Free Mixed Charging: Multi-bay chargers feature independently controlled channels, allowing simultaneous charging of different battery sizes and chemistries—mix D, C, AA, AAA, 18650, 21700, 26650, and other cell sizes without interference. The Nitecore D4 features 4 independent microcomputer-controlled charging channels, capable of monitoring and charging up to 4 batteries simultaneously. The XTAR VP4 Plus Dragon's 4 channels work completely independently, supporting mixed charging of different types, capacities, and charge levels.
• 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 fire-retardant housing and are certified to CE, FCC, and RoHS international safety standards. ANSMANN chargers feature faulty cell detection, pre-charge function, safety timer, and cell temperature detection. Reverse polarity displays an "Err" message on the screen, effectively preventing damage to batteries and charger.
• 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 XTAR VP4 Plus Dragon's LCD display shows battery type, state of charge, selected charge current, capacity, and internal resistance. Nitecore D2/D4 chargers feature a built-in HD LCD display showing real-time charging parameters and progress, with side buttons for manually switching between slots and parameters. Some chargers also support capacity testing, IR detection, and discharge mode.
• 1.5V Regulated Li-ion D Battery USB Direct Charging Convenience: Some D 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 7400mWh USB rechargeable D battery delivers a stable 1.5V output for industrial-grade applications, supporting 300+ cycles and -20°C~60°C wide-temperature operation. The BESTON 1.5V D battery offers 6000mWh capacity with USB-C direct charging and 1,000+ cycles. The BESTON 1.5V D battery offers 6660mWh capacity, USB-C input 5V/500mA, and output 1.5V/2A Max.

Popular D Size Battery Charger Models – Quick Reference

Category	Model	Bays	Charge Current	Features
4-Bay Professional	XTAR VP4 Plus Dragon	4	0.5A/1A/2A selectable	TC-CC-CV three-stage charging, IR detection, refresh function, power bank, 32650/D compatible
4-Bay Multi-Function	XTAR VC4	4	0.5A/1A auto-select	USB-powered, wide slots fit D-cells, LCD display
8-Bay Smart Charger	Nitecore i8	8	0.5A–1.5A adaptive	8 independent channels, Li-ion/NiMH/NiCd, D/C/AA/AAA compatible
4-Bay Smart Charger	Nitecore D4	4	375mA×4 / 750mA×2	Independent channels, HD LCD, Li-ion/LiFePO₄/NiMH/NiCd
2-Bay Smart Charger	Nitecore D2	2	500mA×2	Independent channels, HD LCD, spring-loaded sliders for secure fit
4-Bay Desktop Charger	ANSMANN Energy 8 Plus	4 (C/D)	Adaptive (-ΔV)	Microprocessor-controlled, faulty cell detection, safety timer, temperature detection
4-Bay Desktop Charger	ANSMANN Basic 5 Plus	4	200mA (C/D)	Cost-effective, LED charging indicators, reverse polarity protection
4-Bay Multi-Function	EBL Multi-Bay Charger	4 (D/C)	1000mA×4	LCD display, charge/discharge/error detect modes, AC/DC dual input

Typical Specifications Range (D Size Battery Chargers)

Parameter	Typical Range
Input Power	USB 5V / Type-C / AC 100–240V / DC 12V
Charge Cutoff Voltage	4.2V ±0.05V (Li-ion) / 3.65V (LiFePO₄) / 1.48V ±1% (NiMH/NiCd)
Charge Current Range	0.2A – 2A (adjustable/adaptive)
Supported Cell Sizes	AAAA / AAA / AA / A / SC / C / D / 10440 / 14500 / 16340 / 18650 / 21700 / 26650 / 32650, etc.
Protection Features	Overcharge, over-discharge, overcurrent, short-circuit, reverse polarity, overheat, charge timeout, faulty cell detection
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 D-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 D-size NiMH/NiCd cells	4-bay desktop charger (ANSMANN Basic 5 Plus / Energy 8 Plus)	Independent channels, cost-effective, simple and reliable operation
Multi-device user; mix charging D, AA, 18650 together	4-bay professional charger (XTAR VP4 Plus Dragon / Nitecore D4)	Multi-size & multi-chemistry compatible, adjustable current, one charger does it all
Professional user; need capacity & IR testing for cell matching	4-bay professional charger (XTAR VP4 Plus Dragon)	IR detection, refresh function, real-time LCD display
Battery pack assembly / multi-device user; need batch charging	8-bay smart charger (Nitecore i8)	8 independent channels, auto-detection, highly efficient
Using 1.5V regulated Li-ion D batteries for maximum convenience	USB Direct-Charge Battery	PKCELL 7400mWh, BESTON 6000mWh (Type-C direct charge)

How to Choose the Right D Size Battery Charger?

Your Requirement	Recommended Type	Suggested Model
I only charge D-size NiMH/NiCd cells and want simplicity & reliability	4-bay desktop charger	ANSMANN Basic 5 Plus, ANSMANN Energy 8 Plus
I need to mix charge D, AA, 18650 of multiple sizes and chemistries	4-bay professional charger	XTAR VP4 Plus Dragon, Nitecore D4
I want real-time charging data monitoring and battery health insights	4-bay professional charger (with LCD)	XTAR VP4 Plus Dragon, Nitecore D2/D4
I need to test capacity and IR for cell matching	4-bay professional charger	XTAR VP4 Plus Dragon
I need to charge multiple cells (4+) simultaneously	8-bay smart charger	Nitecore i8
I use 1.5V regulated Li-ion D batteries and want maximum convenience	USB Direct-Charge Battery	PKCELL 7400mWh, BESTON 6000mWh
I need bulk quantities or custom charging solutions	Contact our sales team	—

⚠️ D Size Battery Charger Safety Guidelines

• Verify Explicit D Size Compatibility: D batteries measure ~32–34mm in diameter and ~61mm in length. Before purchase, confirm the charger specifications explicitly list D size support, or that the bay width accommodates 32–34mm diameter cells and slider travel is ≥61mm. Some chargers have reduced simultaneous capacity when charging D batteries (e.g., 4-bay chargers may support up to 2–3 D 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: D-size NiMH cells charge best at 0.5A–2.0A, 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 D 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.
• Do Not Charge 1.5V Li-ion D Batteries in NiMH Chargers: 1.5V regulated Li-ion D batteries feature built-in charging circuitry and must be charged via the supplied USB-C cable only. Never place them in a NiMH/NiCd charger—this may damage the battery or create a safety hazard.

Why Choose Our D Size Battery Chargers?

• Genuine Brand Products: Chargers from XTAR, Nitecore, ANSMANN, EBL, and other global professional charger brands—reliable quality with full safety certifications.
• Precisely Compatible with D Size: Curated selection of models explicitly labeled as supporting D size—eliminates compatibility issues.
• Multi-Chemistry Compatibility: Select models support NiMH, NiCd, Li-ion, and LiFePO₄ batteries—one charger for multiple needs.
• One-Stop Shopping: D 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 D Size Battery Charger for your needs. For volume quotes or technical inquiries, please contact our customer service team.