Overview
DALY Hardware BMS (Battery Management System) with NTC for Li-ion/LiFePO4 battery packs. The series is shown for 3–24S and 15A–200A, with hardware-focused design features including moisture-proof/anti-oxidation protection, lower temperature rise thermal design, and temperature protection (NTC as standard).
Key Features
- Protection functions: overcharge protection, over-discharge protection, over-current protection, short-circuit protection, waterproof, anti-vibration, temperature protection, electrostatic protection.
- Patented waterproof protection: moisture-proof, shock-proof, oxidation-proof.
- Lower temperature rise: low internal resistance components with advanced thermal design.
- Small size, easy to install.
- NTC temperature monitoring (real-time temperature change monitoring stated).
- Snap-on plug: snap-on cable for tight connection and stable communication.
- Short-circuit protection reaction/delay: 10–500 us.
- Low power consumption: working current < 400 uA.
For selection help (series, string count, and current) or more detailed parameters, contact customer service at https://tsolar.top/ or service@tsolar.top.
Specifications
Dimensional tolerance range: +0.5 mm.
Series dimensions & wiring
| Series | Current | Size | B-P- | Cable |
|---|---|---|---|---|
| G Series | 15A/25A | 34*59*9mm | 16AWG/14AWG, 100mm | 24AWG, 300~450mm |
| H Series | 40A/60A | 48*75*14mm | 8AWG, 160mm | 24AWG, 300~450mm |
| K Series | 40A/60A/100A | 65*123*14mm | 10AWG, 100mm | 24AWG, 300~450mm |
| M Series | 150A | 66*164*21mm | 6AWG, 150mm | 24AWG, 300~450mm |
| M Series | 200A | 66*164*21mm | 4AWG, 150mm | 24AWG, 300~450mm |
Electrical protection & thresholds
| Rated discharge current(V) | Li-ion: N(Battery string)*4.2V; LiFePO4: N(Battery string)*3.65V |
| Discharge overcurrent protection value(A) | 15A: 35±10; 20A: 60±10; 40A: 138±30; 60A: 180±30; 40A: 125±10; 60A: 175±10; 100A: 266±20; 150A: 266±20; 200A: 266±20 |
| Charging current(A) | 15, 20, 40, 60, 40, 60, 100, 150, 200 |
| Charge overcurrent protection value(A) | 15A: 15±2; 20A: 25±3; 40A: 56±10; 60A: 70±10; 40A: 50±10; 60A: 70±10; 100A: 106±20; 150A: 400±20; 200A: 400±20 |
| Main circuit on-resistance(mΩ) | < 20 |
| Passive equalization function | 100±20mA |
| Equalization turn-on voltage(V) | Li-ion: 4.075~4.175; LiFePO4: 3.475~3.525 |
| Equilibrium on condition | Satisfy both: (1) Under charging; (2) Achieving the set equilibrium turn-on voltage |
| Balance current(mA) | Li-ion: 100±20; LiFePO4: 70±20 |
| Short circuit protection conditions | External load short circuit |
| Short circuit protection delay(us) | 10~500 |
| Short circuit protection released | Remove load release |
| Single cell over-charge protection voltage(V) | Li-ion: 4.25±0.05; LiFePO4: 3.65±0.05 |
| Single cell over-charge protection delay(S) | 1±0.5 |
| Single cell over-charge recovery voltage(V) | Li-ion: 4.10±0.05 / 4.15±0.05; LiFePO4: 3.50±0.05 / 3.55±0.05 |
| Single cell over-discharge protection voltage(V) | Li-ion: 2.7±0.05 / 2.8±0.05; LiFePO4: 2.3±0.05 |
| Single cell over-discharge protection delay(S) | 1±0.5 |
| Single cell over-discharge recovery voltage(V) | Li-ion: 2.8±0.05 / 3.0±0.05; LiFePO4: 2.3±0.05 / 2.7±0.05 |
| Charge/discharge over-current protection delay(S) | 1±0.5 |
| Charge/discharge over-current release condition | Removing the load is lifted |
| Temperature protection(°C) | Charging: -20~55; Discharge: -40~75 |
| Storage temperature(°C) | -40~85 |
| Current consumption | Working current(uA) < 400uA |
Available Options (Shopify Variants)
- Cell/voltage options: Li-ion 3S 12V; Li-ion 4S 12V; LiFePO4 4S 12V; Li-ion 6S 24V; Li-ion 7S 24V; LiFePO4 8S 24V; Li-ion 10S 36V; LiFePO4 12S 36V; Li-ion 13S 48V; Li-ion 14S 48V; LiFePO4 16S 48V; Li-ion 16S 60V
- Current options: 15A NTC; 20A NTC; 40A NTC; 60A NTC
Applications
- Large single cell battery pack, cylindrical cell battery pack, soft cell battery pack
- Electric bicycle
- Electric two-wheeler
- Electric tricycle
- Portable power supply
- Outdoor energy storage
- Floor sweeper
- Tour vehicle
- RV energy storage
- Low-speed car
What’s Included
- BMS x 1
- Manual x 1
- Output wire B-P- (K/M Series) x 1
- Cable x 1
- NTC (H series integrated NTC) x 1
Details
Designed for Li-ion and LiFePO4 battery packs, the hardware BMS range covers 3–24S and 15A–200A options with NTC temperature protection as standard.
Use the series sizing chart to match your pack’s string count and current requirement with the correct board size and wiring harness.
Protection thresholds and balancing/current-consumption data are provided to help choose the right BMS for your pack design.
Suitable for a wide range of lithium battery applications, from light electric vehicles to portable power and energy storage systems.
Core safeguards include overcharge/over-discharge protection, overcurrent and short-circuit protection, plus waterproofing, anti-vibration, and electrostatic protection.
Moisture-proof and anti-oxidation protection help improve durability, while passive balancing supports better cell consistency over time.
NTC temperature sensing tracks real-time changes, and the snap-on harness plug helps keep connections tight for stable communication.
Low internal resistance components and thermal design focus on reducing temperature rise under load.
Low working current (under 400 µA) helps reduce standby drain in long-running battery packs.
Layered construction highlights the heat-dissipation plates, MOS section, and the sampling/output wiring layout used for pack integration.
Package contents typically include the BMS, wiring harness(es), and documentation; inclusions can vary by series and current rating.
Follow the three-step wiring guide to connect sampling leads to the cell strings, verify voltages, then connect B-/P- to the pack and load.
DALY hardware BMS support is backed by an in-house R&D team and lab testing environment for ongoing development and troubleshooting.
DALY hardware BMS manufacturing is supported by multiple production lines and an anti-static workshop environment.
Delivery, logistics, and warranty details are outlined, including typical shipment within 3–7 days and a one-year warranty under normal use.
