Product Description
13S 48V 20A eBike BMS with NTC Sensor
Mini Size 60×34mm | Adjustable Thermal Protection | O2 Microchips | Optional E‑Switch
The 13S 48V 20A eBike BMS is a compact, high‑performance Battery Management System designed specifically for 13S (48V) lithium‑ion battery packs used in electric bicycles, e‑scooters, and light electric vehicles. Measuring just 60×34mm, it fits easily into space‑constrained downtube or rear‑rack battery enclosures. Equipped with an NTC thermal sensor for adjustable over‑temperature protection, O2 Microchips for customizable parameters, and an optional E‑switch for MOSFET control, this BMS delivers reliable safety and precise management for 20A continuous discharge systems.
⚙️ Key Features
📏 Mini Size (60×34mm)
Ultra‑compact dimensions – perfect for tight battery enclosures in e‑bikes, e‑scooters, and hoverboards.
🌡️ NTC Thermal Sensor (Adjustable)
Integrated NTC thermistor provides real‑time temperature monitoring. Over‑temperature protection thresholds are adjustable to suit your battery chemistry and operating environment.
🔘 Optional E‑Switch
An optional E‑switch allows convenient electronic control of MOSFET on/off, enabling easy power management and enhanced safety.
🧠 O2 Microchips
Built with advanced O2 Microchips, enabling precise voltage monitoring, reliable protection, and fully adjustable parameters (voltage thresholds, current limits, protection delays) to match your specific battery pack requirements.
⚡ 20A Continuous Discharge
20A continuous current capability supports 250W–500W e‑bike motors, providing smooth and reliable power delivery.
🛡️ Comprehensive Protections
Over‑charge, over‑discharge, over‑current, short circuit, and over‑temperature protections ensure safe and reliable battery operation.
📊 Technical Specifications
- Battery Configuration: 13S Li‑ion (48V nominal)
- Continuous Discharge Current: 20A
- Dimensions: 60 × 34 mm (mini size)
- Temperature Sensor: NTC thermistor (adjustable over‑temperature protection)
- Control: Optional E‑switch for MOSFET on/off
- Microchips: O2 Microchips – adjustable parameters
- Protections: Over‑charge, over‑discharge, over‑current, short circuit, over‑temperature
- Balancing: Passive balancing
- Applications: Electric bicycles, e‑scooters, pedelecs, light EVs
🔧 Customization & UL2271 Alternative
Parameters of this BMS can be adjusted according to your requirements before shipping – including voltage thresholds, current limits, and temperature protection settings. For applications requiring UL2271 certification, we recommend the P10S091 model (10S 36V 20A UL2271 certified BMS).
🚲 Applications
🚴 Electric Bicycles (E‑Bikes)
Ideal for 48V e‑bike battery packs requiring a compact BMS with adjustable thermal protection and optional E‑switch.
🛴 Electric Scooters & Pedelecs
Perfect for 48V scooter batteries with limited space, offering reliable 20A discharge and NTC safety.
🔋 Custom Battery Packs
Great for DIY builders who need a mini 13S BMS with customizable parameters for Li‑ion packs.
🖼️ Product Gallery
We offer OEM/ODM services – customize current ratings, cell series (7S‑14S), thermal sensor thresholds, and physical dimensions. For UL2271 certified options, please refer to P10S091. Contact our engineering team for sample requests, technical documentation, and volume pricing.
Primary: 13S BMS · 48V BMS · 20A BMS · eBike BMS · NTC sensor · O2 Microchips · thermal protection · adjustable parameters · E‑switch · mini BMS · lithium battery management · electric bicycle battery protection
Performance: 20A continuous discharge · 60×34mm size · passive balancing · over‑charge protection · over‑discharge protection · over‑current protection · short circuit protection · over‑temperature protection · customizable voltage/current thresholds
Applications: electric bicycle · e‑scooter · pedelec · 48V lithium battery · light electric vehicle · custom battery pack
