Product Details: 

The Hohm Tech School Battery Charger is a safe and efficient device that can fully charge four batteries. It is compatible with 18650, 20700, and 21700 batteries and utilizes the BLD1 system to automatically adjust the output for different cell sizes. This feature protects compact li-ion batteries from potential damage and preserves their chemical integrity, ensuring a longer lifespan.

Product Specifications:

4 Bay Charger
2.0A x 2, 1.0A x 4 / 1A x 2 & 0.5A x 2 (4A Max Combined Output)
Completely automated with LED charge status indicators
Compatible will all Li-ion cells from 30mm to 73mm
Multiple protection features (over charge, short-circuit, wrong battery type detection and reverse polarity

Product Features

• BLD1 System – Automates charge amplification & reduction on li-ion cells
• Input-Power Autonomous Regulator integration (no more stressing USB power adapters or ports)
• Compatible with ALL li-ion cells from as short as 30mm to as long as 73mm
• LED indicator that reports color and blink variation for quick/easy readout
• PCB/PCM3 compatible so even protected cells aren’t left out in the cold
• Protection 101: A] over charge; B] short-circuit; C] wrong battery type detection; D] reverse polarity