Description
Hohm Tech SCHOOL⁴ 4A USB-C Battery Charger
Power your rechargeable batteries with precision using the Hohm Tech SCHOOL⁴ 4A USB-C Battery Charger. An upgraded evolution of the popular SCHOOL 2A Charger, this advanced 4-bay intelligent charger delivers fast, adaptive charging through innovative battery management technologies, USB-C connectivity, and extensive safety protections.
Designed for users who rely on multiple rechargeable lithium-ion batteries, the SCHOOL⁴ intelligently adjusts charging amperage for each installed cell, ensuring efficient charging while helping maximize battery longevity.
Note: Batteries are not included .
Intelligent 4-Bay Charging
The Hohm Tech SCHOOL⁴ features four independently managed charging bays capable of intelligently adjusting charging current based on battery requirements.
Intelligent Charging Levels:
0.5A Charging
1.0A Charging
2.0A Charging
The charger automatically selects the appropriate charging level to optimize battery performance and lifespan.
Advanced Battery Length Detection (BLD)
The integrated Battery Length Detection (BLD) System automatically measures each battery and adjusts charging parameters accordingly.
BLD Benefits:
Automatic Battery Recognition
Optimized Charging Current
Improved Charging Efficiency
Compatible with Batteries up to 73mm
This intelligent system helps ensure every compatible battery receives the appropriate charging profile.
Four-Stage Intelligent Charging Algorithm
The SCHOOL⁴ utilizes an advanced Four-Stage Charge/Discharge Algorithm to maximize battery health.
Charging Stages:
Constant Current (CC)
Constant Voltage (CV)
Oscillation Phase
Micro-Pulse Charging
Combined with Binomial DV Algorithmic Technology , this charging process promotes consistent performance and long-term battery reliability.
Universal Li-Ion Battery Compatibility
Designed for versatility, the SCHOOL⁴ supports a broad range of 3.6V and 3.7V lithium-ion batteries.
Compatibility:
Li-Ion Batteries
Battery Lengths up to 73mm
Compatible with many popular rechargeable battery sizes
Always verify battery compatibility before charging.
Modern USB-C Connectivity
Powered through a convenient USB Type-C connection, the SCHOOL⁴ can operate from virtually any compatible 5V USB power source.
USB-C Benefits:
Modern USB-C Input
Reliable Power Delivery
Wide USB Compatibility
Convenient Charging Anywhere
Durable Fire-Retardant Construction
Unlike traditional ABS plastic chargers, the SCHOOL⁴ is built using durable non-ABS fire-retardant materials for enhanced durability and safety.
Construction Features:
Fire-Retardant Housing
Two-Tier Battery Bridge System
Piano Wire Spring Charging Bays
Multi-Groove Positive Battery Contacts
Designed for reliable everyday charging performance.
Advanced Safety Protection
Multiple built-in protections help safeguard your batteries during every charging cycle.
Safety Features:
Reverse Polarity Protection
Wrong Battery Type Detection
Overcharge Protection
Short-Circuit Protection
Integrated Input Power Regulator
Automaintenance System
Battery Doctor Technology
These intelligent systems help deliver dependable charging while protecting compatible batteries.
Rear LED Status Display
The SCHOOL⁴ features a rear LED light readout system for simple charging status monitoring while maintaining its clean, screenless design.
Hohm Tech SCHOOL⁴ Features
Four Independent Charging Bays
Intelligent 0.5A / 1A / 2A Charging
USB Type-C Input
Battery Length Detection (BLD) System
Four-Stage Charging Algorithm
Binomial DV Algorithmic Technology
Compatible with 3.6V / 3.7V Li-Ion Batteries
Supports Batteries up to 73mm
Fire-Retardant Construction
Rear LED Charging Indicators
Integrated Input Power Regulator
Reverse Polarity Protection
Overcharge Protection
Wrong Battery Type Detection
Short-Circuit Protection
Operating Temperature: 0–40°C (32–104°F)
Dimensions
108mm × 96mm × 29mm
Battery Safety Guidelines
For safe charging and maximum battery life:
Never overcharge or over-discharge rechargeable batteries.
Do not charge damaged batteries or batteries with torn wraps.
Always inspect batteries before charging.
Never leave charging batteries unattended.
Charge batteries on a clean, fire-resistant surface.
Store batteries in protective, non-conductive battery cases.
Keep batteries away from heat and open flames.
Dispose of batteries according to local recycling regulations.
Why Choose the Hohm Tech SCHOOL⁴?
Intelligent 4-Bay Charging
USB-C Connectivity
Automatic 0.5A–2A Charging
Battery Length Detection Technology
Four-Stage Charging Algorithm
Universal Li-Ion Compatibility
Fire-Retardant Construction
Advanced Safety Protections
Compact Screenless Design
The Hohm Tech SCHOOL⁴ 4A USB-C Battery Charger is a premium charging solution built for users who demand intelligent performance, broad battery compatibility, and dependable safety. With adaptive charging technology, USB-C convenience, advanced battery management features, and durable construction, it delivers efficient, reliable charging for compatible lithium-ion batteries every day.
