Product Description
LT-P14S019 | Mini 13S/14S 48V/52V 20A BMS with Plastic Shell for eBikes
Separated Ports (5A Charge / 20A Discharge) | e‑Switch | NTC & Temperature Switch | Compact 32×60mm
The LT-P14S019 is a mini‑size Battery Management System (BMS) housed in a protective plastic shell, designed for 7S to 14S lithium‑ion, Li‑Polymer, and LiFePO₄ battery packs – covering 24V to 52V systems (including 48V and 52V). With separated ports for charging (5A) and discharging (20A), an e‑switch, NTC thermal sensor, and a temperature switch, this compact BMS (32×60mm) delivers robust protection and precise control. Ideal for electric bikes (e‑bikes), electric scooters, skateboards, hoverboards, and other light electric vehicles.
📋 Product Overview
The LT-P14S019 BMS is a versatile, high‑reliability solution for battery packs requiring a compact form factor and advanced safety features. Encased in a durable plastic shell, it offers excellent insulation and protection against shorts. Its separated charge/discharge ports allow independent current rating optimization – 5A charging and 20A discharging – making it suitable for 250W‑750W e‑bike motors. The built‑in e‑switch provides convenient power control, while the NTC sensor and temperature switch ensure thermal protection.
⚙️ Key Features
📦 Plastic Shell Protection
Encased in a durable plastic housing, providing electrical insulation, dust protection, and mechanical durability for long‑term reliability.
🔌 Separated Ports – 5A Charge / 20A Discharge
Independent charge and discharge ports allow optimized current ratings: 5A charging for safe battery replenishment and 20A continuous discharge for high‑power motor operation.
🔘 e‑Switch for Easy Power Control
Integrated electronic switch (e‑switch) enables convenient on/off control of the battery pack, simplifying management and enhancing user safety.
🌡️ NTC Thermal Sensor & Temperature Switch
Dual thermal protection: an NTC thermistor monitors battery temperature in real time, and a dedicated temperature switch provides redundant over‑temperature protection, preventing overheating.
🔋 Wide Battery Compatibility
Supports 7S to 14S configurations for Li‑ion, Li‑Polymer, and LiFePO₄ chemistries (24V–52V), offering flexibility for various applications.
📏 Ultra‑Compact Size
Dimensions: 32 × 60 mm – one of the smallest 14S BMS available, ideal for space‑constrained battery enclosures in e‑bikes and scooters.
🛡️ Comprehensive Protections
Over‑charge, over‑discharge, over‑current, short circuit, and over‑temperature protections ensure safe and reliable battery operation.
📊 Technical Specifications
- Model: LT-P14S019
- Cell Series Support: 7S – 14S (Li‑ion / Li‑Polymer / LiFePO₄)
- Nominal Voltage Range: 24V – 52V (e.g., 48V, 52V)
- Continuous Discharge Current: 20A
- Charge Current (Separated Port): 5A
- Input Charging Voltage: 4.2V × series (Li‑ion) / 3.65V × series (LiFePO₄)
- Port Configuration: Separated ports (charge and discharge independent)
- Temperature Sensing: NTC thermistor + temperature switch
- Control: e‑switch (electronic power switch)
- Balancing: Passive balancing
- Protections: Over‑charge, over‑discharge, over‑current, short circuit, over‑temperature
- Dimensions (L×W×H): 32 × 60 × 1.0 mm (plus plastic shell)
- Working Temperature: -10°C to 65°C
- Applications: Electric bicycles, e‑scooters, skateboards, hoverboards, light electric vehicles
🚲 Applications
🚴 Electric Bicycles (E‑Bikes)
Ideal for 48V and 52V e‑bike battery packs, providing reliable 20A discharge for motors up to 750W.
🛴 Electric Scooters & Skateboards
Perfect for 36V‑52V scooter and skateboard batteries, with compact size fitting into narrow enclosures.
🛹 Hoverboards & Self‑Balancing Scooters
Designed for 10S‑14S Li‑ion packs in hoverboards, offering robust protection and thermal management.
🔋 Custom Battery Packs
Excellent choice for DIY projects needing a compact, plastic‑encased BMS for 48V‑52V systems.
We offer OEM/ODM services for the LT-P14S019 platform – customize current ratings, voltage support, and physical dimensions. Contact our engineering team for sample requests, technical documentation, and volume pricing.
Primary: 13S BMS · 14S BMS · 48V BMS · 52V BMS · 20A BMS · LT-P14S019 · e‑bike BMS · plastic shell BMS · separated ports · NTC sensor · e‑switch · temperature switch · Li‑ion BMS · LiFePO₄ BMS
Performance: 20A discharge / 5A charge · 32×60mm compact size · 7S‑14S support · passive balancing · over‑charge protection · over‑discharge protection · over‑current protection · short circuit protection · over‑temperature protection · plastic enclosure
Applications: electric bicycle · e‑scooter · skateboard · hoverboard · light electric vehicle · 48V lithium battery · 52V lithium battery · custom battery pack
