1. Introduktion
This manual provides detailed instructions for the safe and effective use of the Wendry HW-391 2S Lithium Battery Protection Board. This board is designed to protect 2-series (2S) lithium-ion battery packs from overcharge, over-discharge, and overcurrent conditions. It is intended for use with two 4.2V cells connected in series.
2. Produktet er slutview
The HW-391 protection board is built with high-quality materials to ensure durability and reliable performance. It features a professional chipset for stable operation.
- Opladning Voltage: DC 8.4-9V
- Kontinuerlig afladningsstrøm: 20A (Note: Reduce load current if heat dissipation is poor.)
- Continuous Charging Current: 10A
- Beskyttelsesfunktioner: Overvoltage, undervoltage, og overstrømsbeskyttelse.
- Design: Precise cuts and interfaces for easy installation and secure fit.
Figur 2.1: Øverst view of the HW-391 board, highlighting its robust construction.
Figur 2.2: Detaljeret view of the board's electronic components and voltage markeringer.
3. Specifikationer
| Parameter | Værdi |
|---|---|
| Produkt model | HW-391 |
| Opladning Voltage | DC 8.4-9V |
| Kontinuerlig afladningsstrøm | 20A |
| Kontinuerlig ladestrøm | 10A |
| Varetype | Batteribeskyttelsestavle |
| Produktstørrelse (L x B x H) | Ca. 5 x 2 x 0.2 cm (2.0 x 0.8 x 0.1 tommer) |
| Input bindtage | 9 volt |
| Udgang Voltage | 9 volt |
4. Opsætning og installation
The HW-391 board is designed for 2-series (2S) lithium-ion battery configurations. Proper wiring is crucial for safe operation. This board provides basic protection and does ikke include charging management, cell balancing, or temperature monitoring.
4.1 Ledningsdiagram og tilslutninger
Follow these steps for connecting the battery cells and output:
- Battery Series Connection: Connect two 4.2V lithium-ion cells in series. Ensure the positive terminal of Cell 1 is connected to the negative terminal of Cell 2. The configuration should be: +[Cell 1]- +[Cell 2]-.
- 0V Pad Connection: Tilslut 0V pad on the protection board to the NEGATIV (-) terminal of Cell 2.
- 4.2V Pad Connection: Tilslut 4.2V pad on the protection board to the KNUDEPUNKT point between Cell 1's negative terminal and Cell 2's positive terminal.
- 8.4V Pad Connection: Tilslut 8.4V pad on the protection board to the POSITIV (+) terminal of Cell 1.
- Udgangsforbindelse: Connect your load or charger to the + og - output pads on the board.
Figure 4.1: Connection points on the HW-391 board.
Vigtig: Always double-check your wiring before applying power to prevent damage to the board or batteries. Incorrect wiring can lead to short circuits, overheating, or fire.
5. Betjeningsvejledning
Once properly installed, the HW-391 board operates automatically to provide protection for your 2S lithium battery pack.
- Opladning: Connect a DC 8.4-9V charger to the output terminals. The board will allow charging up to 10A. It will cut off charging if the voltage exceeds the overcharge protection threshold.
- Afladning: Connect your load to the output terminals. The board will allow discharge up to 20A. It will cut off discharge if the voltage drops below the over-discharge protection threshold.
- Overstrømsbeskyttelse: The board will interrupt the circuit if the discharge current exceeds 20A to protect the batteries and the board itself.
The board's protection functions are designed to prolong the lifespan of your lithium batteries by preventing them from operating outside their safe voltage og nuværende grænser.
6. Vedligeholdelse
The HW-391 battery protection board requires minimal maintenance. Adhere to the following guidelines:
- Hold rent: Ensure the board is free from dust, dirt, and moisture. Use a soft, dry brush or cloth for cleaning if necessary.
- Miljøforhold: Operate the board within its specified temperature and humidity ranges. Avoid extreme heat, cold, or damp miljøer.
- Fysisk inspektion: Periodically inspect the board for any signs of physical damage, loose connections, or discoloration.
- Varmeafledning: If operating at high continuous discharge currents (close to 20A), ensure adequate airflow around the board to prevent overheating. Consider reducing the load current if the board becomes excessively hot.
7. Fejlfinding
If you encounter issues with the HW-391 board, consider the following common problems and solutions:
| Problem | Mulig årsag/løsning |
|---|---|
| Ingen udgangseffekt. |
|
| Batterier oplades ikke. |
|
| Board becomes excessively hot. |
|
| Uventet strømafbrydelse. |
|
Note: This board provides basic protection. It does not perform cell balancing. Ensure your 2S battery pack is balanced externally if required for your application.
8. Sikkerhedsoplysninger
Read and understand all safety precautions before installing or operating the HW-391 protection board.
- Elektrisk fare: This product involves electrical components. Improper handling can result in electric shock.
- Batterisikkerhed: Always use appropriate lithium-ion batteries and handle them with care. Do not short-circuit batteries.
- Korrekt bindtage: Ensure the input and output voltages are within the specified range (DC 8.4-9V).
- Polaritet: Observe correct polarity for all connections. Incorrect polarity can damage the board and batteries.
- Ventilation: Ensure adequate ventilation, especially when operating at high currents, to prevent overheating.
- Professionel installation: If you are unsure about any aspect of installation, seek assistance from a qualified professional.
- Børn og kæledyr: Hold produktet utilgængeligt for børn og kæledyr.
9. Garanti og support
For warranty information or technical support regarding your Wendry HW-391 2S Lithium Battery Protection Board, please refer to the retailer's return policy or contact Wendry customer service through their official channels. Please have your product model number (HW-391) and purchase details ready when contacting support.