Overview
DALY Hardware BMS is a battery management system with NTC temperature sensing for Li-ion and LiFePO4 battery packs. It supports 3~24S configurations (depending on the selected version) and is offered in multiple current levels and series (G/H/K/M) to match different pack sizes and wiring needs.
Key Features
- Supports Li-ion / LiFePO4 battery packs; 3~24S range (model dependent).
- Temperature protection with NTC (standard).
- Protection functions: overcharge, over-discharge, over-current, short-circuit, temperature protection, electrostatic protection; plus waterproof and anti-vibration claims.
- Passive equalization function: (100±20 mA).
- Low power consumption: working current <400 uA.
- Snap-on plug (snap-on cable connection).
- Precharge function note: G and H type BMS do not have the function of pre-charging.
- Moisture-proof, anti-vibration, anti-oxidation; glue injection process (National Patent number: ZL 2018 2 1243978.5).
For selection help (series, cell count, chemistry, and current rating), contact customer service at https://tsolar.top/ or service@tsolar.top.
Specifications
Dimensional data tolerance: +0.5 mm.
Series Mechanical / Wiring (as specified)
| Series | Rated current options | Size | B-/P- lead | Cable |
|---|---|---|---|---|
| G Series | 15A/20A (Current: 15A/25A) | 34*59*9 mm | 16AWG/14AWG, 100 mm | 24AWG, 300~450 mm |
| H Series | 40A/60A | 48*75*14 mm | 8AWG, 160 mm | 24AWG, 300~450 mm |
| K Series | 40~100A (Current: 40A/60A/100A) | 65*123*14 mm | 10AWG, 100 mm | 24AWG, 300~450 mm |
| M Series | 150A (M Series 150A/200A) | 66*164*21 mm | 6AWG, 150 mm | 24AWG, 300~450 mm |
| M Series | 200A (M Series 150A/200A) | 66*164*21 mm | 4AWG, 150 mm | 24AWG, 300~450 mm |
Electrical / Protection Parameters (as specified)
| Rated discharge current (V) | Li-ion: N (Battery string) * 4.2V; LiFePO4: N (Battery string) * 3.65V |
| Charging voltage (A) | 15 / 20 / 40 / 60 / 40 / 60 / 100 / 150 / 200 |
| Discharge overcurrent protection value (A) | 35±10 / 60±10 / 138±30 / 180±30 / 125±10 / 175±10 / 266±20 / 266±20 / 266±20 |
| Charging current (A) | 15 / 20 / 40 / 60 / 40 / 60 / 100 / 150 / 200 |
| Charge overcurrent protection value (A) | 15±2 / 25±3 / 56±10 / 70±10 / 50±10 / 70±10 / 106±20 / 400±20 / 400±20 |
| Main circuit on-resistance (mΩ) | <20 |
| Passive equalization function | (100±20 mA) |
| Equalization turn-on voltage (V) | Li-ion: 4.075~4.175; LiFePO4: 3.475~3.525 |
| Equilibrium ON condition | 1) Under charging 2) Achieving the equilibrium turn-on voltage |
| Balance current (mA) | Li-ion: 100±20; LiFePO4: 70±20 |
| 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 |
| Short circuit protection | Conditions: external load short circuit; delay (uS): 10-500; released: remove load release |
| Temperature protection (°C) | Charging: -20~55; Discharge: -40~75 |
| Storage temperature (°C) | -40~85 |
| Current consumption | Working current (uA): <400 uA |
Available Options
- Current (by chemistry / nominal pack voltage selection): 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; Li-ion 17S 60V; Li-ion 20S 72V; Lifepo4 24S 72V
- Version: 100A NTC; 150A NTC; 200A NTC
What’s Included
The packaging list shown uses a K series 60A BMS as an example. Included items are listed as:
- BMS x1
- Manual x1
- Output wire B-/P- (K/M Series) x1
- Cable x1
- NTC (H series integrated NTC) x1
Applications
- Electric bicycle
- Electric two-wheeler
- Electric tricycle
- Portable power supply
- Outdoor energy storage
- Floor sweeper
- Tour vehicle
- RV energy storage
- Low-speed car
Details
Born strong and built for a wide range of 3–24S lithium packs, with NTC temperature sensing and multiple current ratings.
Choose the right series by matching your pack’s current and wiring needs across G, H, K, and M series formats.
Protection settings are summarized for overcharge, over-discharge, overcurrent, short-circuit, and temperature protection.
Suitable for many lithium battery applications—from e-bikes and scooters to RV energy storage and low-speed vehicles.
Core protections include overcharge/over-discharge, overcurrent, short-circuit, temperature protection, ESD, plus waterproof and anti-vibration claims.
Glue-injection construction supports moisture-proof and anti-vibration claims, with passive balancing and series-dependent precharge notes.
NTC temperature monitoring and snap-on plug wiring help simplify installation while improving pack safety.
Low temperature rise is supported by low internal resistance components and a thermal-focused hardware layout.
Designed for low standby drain, with working current listed as under 400 μA.
An exploded view highlights the aluminum heat dissipation plates, MOS section, and the main sampling/output connections.
Package contents include the BMS, wiring harness/cables, NTC sensor, and manual (items vary by series).
Follow the 3-step wiring guide to connect sampling leads and main B-/P- terminals before powering the pack.
DALY emphasizes reliable technical support backed by R&D teams and lab testing for its hardware BMS products.
DALY hardware BMS production is supported by a 20,000 m² facility with 13 intelligent production lines and 10,000,000+ annual output capacity.
DALY Hardware BMS orders typically ship within 3–7 days (no Sunday shipments) and include a one-year warranty under normal use.
