ZB 24V 3A Lithium Wheelchair Charger – engineered for 24V lithium battery packs (LiFePO₄ 29.2V / Ternary 29.4V). With 3A output current, this charger reduces charging time by approximately 40‑50% compared to 2A models, making it ideal for larger battery banks (15‑30Ah). It features 12 interchangeable plugs, full global certifications, and intelligent 4‑stage charging. Perfect for electric wheelchairs, heavy‑duty mobility scooters, and light EVs where faster turnaround is essential.
One charger works worldwide – choose your plug at order.
Charges 15‑30Ah batteries up to 50% faster than 2A chargers.
Over‑current, over‑voltage, short‑circuit, reverse polarity, backflow, over‑temperature.
UL, CE, FCC, PSE, KC, CB, RoHS, IEC60601‑1, ISO7176‑31, UKCA.
Select Your Plug Type – Click any image to view full size
Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage | 100‑240V AC, 50/60Hz |
| Output Voltage (LiFePO₄ / Ternary) | 29.2‑29.6V DC |
| Output Current | 3A max (faster than 2A) |
| Recommended Battery Capacity | 15Ah – 30Ah |
| Efficiency | ≥90% |
| Pre‑charge Current/Voltage | 1000±200mA @ 20±2V |
| Transition Current (to float) | 300±50mA (higher than 2A version) |
| Cooling | Natural convection – fanless, silent |
| Housing Material | PC plastic, fire‑retardant |
| Dimensions (L×W×H) | 155×74×32mm |
| Net Weight | 465±5g |
| Output Connector | 3‑pin XLR male, 1200mm cable |
| Input Cord Lengths | US 1800mm, others 1300mm |
| Withstand Voltage | 4KV |
| Packing (Master Carton) | 25 pcs/carton (460×340×370mm) |
Fig.1: Dimensions for 2A/3A models (155×74×32mm)
Fig.2: Output connector – 3-pin XLR male, 1200mm cable
Six‑Layer Protection System
- Over‑current protection – automatically limits or cuts output when charging current exceeds safe threshold, preventing damage to both charger and battery.
- Over‑voltage protection – stops charging immediately when voltage rises above the upper safety limit, eliminating the risk of battery swelling, fire, or permanent cell damage.
- Short‑circuit protection – instant output shutdown in case of accidental short on the output cable, ensuring user safety and preventing fire hazards.
- Reverse polarity protection – no output when battery is connected backwards; both charger and battery remain unharmed – a common mistake easily avoided.
- Backflow / anti‑reverse current protection – prevents battery voltage from feeding back into the charger’s internal circuits, protecting sensitive components when the charger is unplugged but battery remains connected.
- Over‑temperature protection – reduces charging current or shuts down when internal temperature exceeds safe limit, ensuring long‑term reliability even in hot environments.
Smart 4‑Stage Charging Algorithm for Faster Recharge
The ZB 24V 3A Lithium Charger utilizes an advanced pre‑charge → constant current (3A) → constant voltage → float profile. The higher 3A constant current significantly reduces charging time for medium‑capacity lithium batteries (15‑30Ah). For example, a 20Ah fully discharged battery takes approximately 6‑7 hours with a 3A charger, compared to 10‑11 hours with a 2A charger – a time saving of nearly 40%.
Pre‑charge safely awakens deeply discharged cells (down to 20±2V); constant current (3A) delivers rapid bulk charge; constant voltage precisely controls saturation to avoid overcharge; float maintains battery health after full charge. The optimized transition current (300mA) ensures accurate termination, extending cycle life by up to 25% compared to cheap chargers without proper termination logic.
Battery Compatibility
The charger is compatible with two most common 24V lithium battery chemistries:
- Lithium Iron Phosphate (LiFePO₄) – full charge voltage 29.2V. Ideal for high‑safety, long‑cycle applications.
- Ternary Lithium (NMC/Li‑ion) – full charge voltage 29.4V. Provides higher energy density for lighter weight.
Auto‑detection is not needed – the charger’s output voltage range (29.2‑29.6V) safely covers both. Always verify your battery’s specifications before use.
Global Certifications & Compliance
Our charger holds multiple international certificates: UL, CE, FCC, PSE, KC, CB, RoHS, IEC 60601‑1, ISO 7176‑31, and UKCA (for UK plug version). These attest to full compliance with safety, electromagnetic compatibility, and wheelchair‑specific electrical standards – giving wholesale buyers complete confidence and simplifying customs clearance.
Application & B2B Information
Ideal for: Electric wheelchairs, mobility scooters, golf carts, and light electric vehicles using 24V lithium batteries in the 15‑30Ah range. The 3A charger is perfect for users who need faster daily charging, such as rental fleets, healthcare facilities, or active wheelchair users who rely on their device throughout the day. The reduced charging downtime directly improves equipment utilization and customer satisfaction.
Wholesale & Customization: Minimum Order Quantity (MOQ) is 25 pieces per type (mixed plug types allowed). OEM services include custom logo on housing, custom packaging, and label language (English / Japanese / UKCA). Sample orders are supported for evaluation. Delivery time: 15‑25 days after payment confirmation.
12‑Month Hassle‑Free Warranty: If any unit fails due to manufacturing defect within warranty, provide a short video or photo as proof. We will credit the failed quantity on your next order – no need to return defective units, saving you return shipping costs and downtime. This policy applies globally and simplifies after‑sales service.
Nameplate languages: English, Japanese, or UKCA marked labels are available upon request. Please specify your preference when ordering.
Shipping & Packing: Each charger comes with the selected input power cord, output XLR cable, and user manual. Master carton contains 25 units (460×340×370mm), ideal for efficient storage and transport. Bulk orders receive palletized packing upon request.
Installation & Safety Tips
- Always connect the charger to the battery first, then plug into AC outlet to reduce spark risk.
- Ensure proper ventilation; do not cover the charger during operation.
- Store charger in dry environment; avoid direct sunlight or high humidity.
- Disconnect charger from AC when not in use.
