100BALANCE 300A 8-24S CAN BMS & Wi-Fi Set - Smart Active Balance

In this review of the 100BALANCE 300A Smart BMS with Wi-Fi module, the conclusion is straightforward: this board is aimed at DIY battery integrators and small commercial battery packs that need robust multi-channel monitoring and active balance protection. The single biggest reason to consider it is the combination of long-range monitoring via Wi-Fi plus built-in Bluetooth and CAN/RS485 communications, which together let users monitor and manage large lithium battery arrays remotely. Its 300A rating and 4-24 cell string support make it a serious choice for mid-size systems.

Key Features

• Multi-channel communications: Built-in Wi-Fi, Bluetooth, CAN and RS485 let installers monitor and control the pack from local and remote interfaces for flexible system integration.
• Broad cell string support: Supports 4 to 24 cell strings so it can be used on a wide range of lithium battery configurations without changing hardware.
• High continuous current: A 300A continuous rating suits medium-power battery banks used in off-grid, EV conversion, and energy storage applications.
• Active balance technology: 1A balancing current and active balance protection help keep cell voltages even and prolong pack life.
• Comprehensive protection: Built-in protections such as overcharge, overdischarge, overcurrent, short circuit and temperature protection enhance pack safety.
• Extra safety features: Pre-charge, misconnection, all-in and parallel protection reduce installation and operational risks in multi-module setups.

Who It's For

This BMS is best suited to hobbyists, installers and small businesses building custom lithium packs who need remote monitoring and multiple communication options. If you are integrating battery banks with CAN or RS485 systems or want Wi-Fi access through the BalanceBMS app on iOS and Android, this board provides those capabilities in one unit.

It is less appropriate for very small single-cell projects where the 300A capability and multi-string wiring are overkill, or for users who need a consumer-style plug-and-play unit with minimal configuration. Professional installers who require certified commercial-grade modules may also prefer purpose-built products with separate certifications.

Pros & Cons

Pros

• Comprehensive communications (Wi-Fi, Bluetooth, CAN, RS485) enable flexible monitoring and system integration.
• Wide string support (4-24S) and 300A rating cover many mid-size battery applications.
• Active balancing and multiple safety protections improve pack longevity and reduce risk.
• Includes extra protections for pre-charge, misconnection and parallel setups, useful in modular systems.

Cons

• The feature set is complex and requires careful wiring and configuration, so it may be intimidating for first-time users.
• Documentation and app setup can require patience to fully exploit all communication ports and functions.

Specifications

Model Type	Smart BMS with Wi-Fi module
Cell String Support	4~24 strings
Continuous Current	300A
Balancing Current	1A
Communications	Wi-Fi, Bluetooth, CAN, RS485, UART
Protection Features	Overcharge, Overdischarge, Overcurrent, Short circuit, Temperature
Extra Protections	Pre-charge, Misconnection, All-in, Parallel protection

Our Verdict

The 100BALANCE 300A Smart BMS with Wi-Fi is a strong choice for builders who need a versatile, communication-rich protection board for medium-sized lithium packs. Its combination of Wi-Fi and fieldbus interfaces with active balancing and comprehensive protections makes it good value for users who will configure and integrate the board into multi-module systems, though novices should be prepared for setup and wiring complexity.

Frequently Asked Questions

Does this BMS support remote monitoring?
Yes. It includes a Wi-Fi module and a BalanceBMS app on iOS and Android for remote monitoring, plus Bluetooth for local access.

How many cells can it manage?
The unit supports 4 to 24 cell strings with active balancing at 1A per channel.

What protections are included?
It provides basic protections like overcharge and overdischarge plus extra features such as pre-charge, misconnection and parallel protection.