ANGUI KBM202S 48V Active Battery Equalizer (2 × 24V Batteries)

Keep Your 48V Battery Bank Balanced and Performing at Its Best

The ANGUI KBM202S Active Battery Equalizer is designed to keep two 24V batteries connected in series perfectly balanced, creating a reliable 48V battery bank for off-grid solar, backup power and energy storage systems.

Unlike passive balancing devices that simply waste excess energy as heat, the KBM202S actively transfers energy between batteries with up to 10A balancing current, helping maintain equal voltage across your battery bank. This improves battery performance, increases usable capacity and significantly extends overall battery lifespan.

The KBM202S is an excellent addition to any 48V battery system using two 24V batteries, and is fully compatible with EPEVER 24V Lithium Batteries, making it the ideal companion for expanding EPEVER-based off-grid systems.

Key Features

• ⚡ Active balancing technology with up to 10A balancing current
• 🔋 Designed for 2 × 24V batteries connected in series (48V system)
• ✅ Compatible with EPEVER 24V Lithium Batteries
• 🔄 Automatically transfers energy between batteries to maintain equal voltage
• 📈 Extends battery lifespan by reducing imbalance and overcharging
• 🏡 Perfect for off-grid solar, backup power and energy storage systems
• 🔧 Simple installation with compact, lightweight design
• 💡 LED voltage indication for easy system monitoring
• 👆 Touch switch operation for safe manual control

Why Use an Active Battery Equalizer?

Over time, batteries connected in series naturally drift apart due to:

• Different charge and discharge rates
• Temperature variations
• Internal resistance changes
• Battery ageing

Even when using identical batteries, these small differences can gradually become larger, causing:

• Reduced usable battery capacity
• Overcharging of one battery
• Undercharging of another
• Shortened battery life
• Poor overall system performance

The ANGUI KBM202S continuously moves energy between batteries, keeping voltages balanced and allowing your battery bank to perform as one healthy system.

Compatible Battery Types

The KBM202S supports most common battery chemistries, including:

• Lithium Iron Phosphate (LiFePO₄ / LFP)
• Lithium NCM
• Lithium Titanate (LTO)
• AGM
• GEL
• Flooded Lead Acid

Perfect For

• Off-grid solar systems
• Tiny homes
• Cabins
• Backup power systems
• Marine applications
• Motorhomes & RVs
• Telecommunications power systems
• Any 48V battery bank using two 24V batteries