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LTW 20S 120A intelligent heating lithium battery protection board with Bluetooth and one-line configuration

LTW 20S 120A lithium battery intelligent protection board, supporting multiple types of lithium battery cells, equipped with a computer for flexible setting of protection parameters, real-time monitoring of battery status,suitable for electric two-wheelers, three-wheelers and more.

Product Model：LT-GP24S009-20S-8-120-68R-5
Product Dimensions: 168 × 83 mm
Tolerance: ±0.5 mm
PCB thickness (including components): 12 ± 1 mm

PRODUCT FEATURES

One-line UART communication: Connect to the host computer to easily set protection parameters
Bluetooth connection + APP monitoring: Real-time viewing of battery level, voltage, temperature and other information
Intelligent heating function: Automatically turn on the heating module at low temperatures to ensure charging safety
Multiple safety protections: Full coverage of overcharge, overdischarge, overcurrent, short circuit and temperature protection
Intelligent balance management: Static balance, supporting 50mA balance current
Screen display: Intuitively show the battery status and operate conveniently

PARAMETER DESCRIPTION

Specification

Details	Min.	Typ.	Max	Error	Unit
Battery
Product Dimensions	168 × 83 mm
Battery type	LiFePO4
Battery Links	20S
Absolute Maximum Rating
Input Charging Voltage	Triple：4.2VString count；Lithium iron phosphate：3.65VString count				V
Input Charging Current		80			A
Output Discharging Voltage	46	64	74		V
Output Discharging Current			120		A
Continuous Output Discharging Current	≤120				A

APPLICATION

Safety Guardian for Worry-Free Riding
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Comprehensive Protection: Provides complete protection against over-charging, over-discharging, over-current, short circuit, and temperature extremes. Ensures complete safety for both battery and vehicle by eliminating hazards at the source. Premium Quality MOSFETs: Utilizes high-quality MOSFETs with lower internal resistance, reducing heat generation and ensuring more stable, reliable operation.
Powerful Performance for Extended Range
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High-Current Capability: Supports continuous **120A** discharge, delivering strong power for hill climbing and heavy loads. Enables instant startup response without lag. Precision Management: Advanced power calculation and balancing technology maximize battery capacity utilization, effectively extending riding range.
Rugged Quality Built for Challenges
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Durable Construction: Specifically engineered for e-bike and e-trike road conditions. Excellent vibration and moisture resistance to handle bumpy roads and various weather conditions with ease. Compact Design: Space-saving structure easily adapts to various battery compartment spaces, making installation simple and straightforward.
Smart Management for Longer Lifespan
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Intelligent Balancing: Effectively prevents cell voltage inconsistency, delays battery degradation, and significantly extends overall battery pack service life. Bluetooth APP Connectivity: Monitor real-time battery status anytime, anywhere. Clear fault warnings and alerts provide immediate system status visibility.

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Certificate Display

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010203040506

Accessories

FAQ

Q: Does this BMS support LiFePO4 or NMC (Lithium-ion) batteries?

A:This BMS is compatible with both LiFePO4and NMC/Lithium-ion batteries. Please specify your battery chemistry when ordering so we can configure it accordingly.
Q: My battery is 14S/15S. Can I use this 13S BMS?

A: No.The BMS must exactly match your battery's series count. Using a BMS with a different series count will result in improper function or potential safety hazards.
Q: What is the difference between "Common Port" and "Separate Port"? Which should I choose?

A: Common Port: Uses a single high-current terminal for both charging and discharging. Benefits: simpler wiring, balanced port wear. Recommended for most users. Separate Port:Has dedicated terminals for charging and discharging. Benefits: independent charging control.
Q: What is the purpose of the "Balancing" function?

A: Balancing is crucial. It acts like a "manager" to keep the voltage of each individual cell in the battery pack equal. This: Maximizes total capacity by preventing the entire pack from being limited by a single cell. Significantly extends battery life by preventing individual cells from deteriorating due to over-charging/discharging.
Q: Does it support Bluetooth APP? What data can I see?

A:Yes, it supports Bluetooth APP connection (via a dedicated module). You can monitor in real-time: Total Voltage, Current, and State of Charge Voltage of Each Individual Cell (most critical data) Temperature, Cycle Count, and Error History
Q: Is it normal for the BMS to get very hot during charging?

A:Slight warmth is normal. However, if it becomes excessively hot (too hot to touch), it is abnormal. Possible causes: Charging current is too high for the BMS rating. Poor heat dissipation (e.g., installed in a confined space). A potential fault in the BMS itself.
Q: Is technical support available?

A: Yes, we provide professional technical support to assist with installation and troubleshooting after your purchase.
Q: What is the Minimum Order Quantity (MOQ)? Can I order samples?

A:We accept sample orders for testing and validation. Please contact our sales team for specific MOQ and sample policies.

LTW 20S 120A intelligent heating lithium battery protection board with Bluetooth and one-line configuration

PRODUCT FEATURES

PARAMETER DESCRIPTION

APPLICATION

Safety Guardian for Worry-Free Riding

Powerful Performance for Extended Range

Rugged Quality Built for Challenges

Smart Management for Longer Lifespan

Certificate Display

Accessories

FAQ

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