Electronic Spices FHJY
Electronic Spices 4S 20A 14.8V 18650 Li-ion Lithium Battery Protection and Charger BMS Module User Manual
Model: FHJY
1. Rhagymadrodd
This manual provides essential information for the safe and effective use of the Electronic Spices 4S 20A 14.8V 18650 Li-ion Lithium Battery Protection and Charger BMS Module. This module is designed to manage and protect 4-series (4S) Li-ion battery packs, ensuring their longevity and safe operation. Please read this manual thoroughly before installation and operation.

Ffigur 1: Blaen view of the Electronic Spices 4S 20A BMS Module, showing components and connection points.
2. Nodweddion Allweddol
The Electronic Spices 4S 20A BMS Module offers the following protective and management features:
- Codi Tâl Voltage: DC 14.8V
- Defnydd Presennol: 20A
- Canfod Overcharge Voltage: 3.90V ± 0.25V per cell
- Rhyddhau Overcharge Voltage: 3.80V ± 0.05V per cell
- Over-discharge Detection Voltage Ystod: 2.0V ± 0.08V per cell
- Diogelu Cylchdaith Byr: Automatically disconnects output in case of a short circuit.
- Amddiffyniad Gorgyfredol: Yn atal difrod rhag tynnu cerrynt gormodol.
- Cydbwyso Celloedd: Helps maintain equal voltage across all cells in the pack for optimal performance.
3. Gosod a Gwifro
Proper wiring is crucial for the safe and correct operation of the BMS module. Refer to the diagram below for connection details. Always ensure power is disconnected before making any connections.
- Connect B- to the negative terminal of the first battery cell (B1-).
- Cyswllt B1 to the positive terminal of the first cell and the negative terminal of the second cell.
- Cyswllt B2 to the positive terminal of the second cell and the negative terminal of the third cell.
- Cyswllt B3 to the positive terminal of the third cell and the negative terminal of the fourth cell.
- Connect B+ to the positive terminal of the fourth battery cell (B4+).
- Connect P- to the negative terminal of your load/charger.
- Connect P+ to the positive terminal of your load/charger.
Nodyn: Ensure all connections are secure and insulated to prevent short circuits. Incorrect wiring can damage the BMS, batteries, or connected devices.

Ffigur 2: Uchaf view of the BMS module, illustrating the various connection pads for battery cells and power output.

Ffigur 3: Gwaelod view of the BMS module, showing voltage markings and model number HX-4S-A20 REV 1.1.
4. Cyfarwyddiadau Gweithredu
Once properly wired, the BMS module will automatically manage the charging and discharging of your 4S Li-ion battery pack. It provides protection against common battery issues.
- Codi tâl: Connect a compatible 14.8V (or slightly higher, up to 16.8V for full charge) Li-ion charger to the P+ and P- terminals. The BMS will manage the charging process, preventing overcharge.
- Rhyddhau: Connect your load to the P+ and P- terminals. The BMS will monitor the discharge, preventing over-discharge and overcurrent.
- Ysgogi Amddiffyn: If any protection threshold (overcharge, over-discharge, overcurrent, short circuit) is met, the BMS will temporarily cut off the output to protect the batteries.
- Adferiad: Most protection states will automatically reset once the fault condition is removed (e.g., removing the short circuit, connecting a charger after over-discharge).
5. cynnal
The Electronic Spices BMS module is designed for low maintenance. However, following these guidelines can help ensure optimal performance and longevity:
- Arolygiad Rheolaidd: Periodically check all wiring connections for looseness or corrosion.
- Glendid: Keep the module free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning.
- Amodau Amgylcheddol: Operate the module within its specified temperature and humidity ranges. Avoid extreme temperatures.
- Iechyd Batri: Ensure the individual 18650 cells used with the BMS are in good condition and are of similar capacity and internal resistance for best performance.
6. Datrys Problemau
If you encounter issues with your BMS module, consider the following troubleshooting steps:
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Dim allbwn cyftage from P+ and P- |
|
|
| BMS gets hot during operation |
|
|
| Batteries not charging fully |
|
|
7. manylebau
Detailed technical specifications for the Electronic Spices 4S 20A 14.8V 18650 Li-ion Lithium Battery Protection and Charger BMS Module:
- Brand: Sbeisys Electronig
- Rhif Model: FHJY
- Math o batri: 4S Li-ion (18650 cells recommended)
- Cyfrol Enwoltage: 14.8V (for 4S Li-ion)
- Codi Tâl Voltage: DC 14.8V (up to 16.8V for full charge)
- Uchafswm Rhyddhad Parhaus Cyfredol: 20A
- Canfod Overcharge Voltage: 3.90V ± 0.25V
- Rhyddhau Overcharge Voltage: 3.80V ± 0.05V
- Over-discharge Detection Voltage: 2.0V ± 0.08V
- Diogelu Cylchdaith Byr: Oes
- Amddiffyniad Gorgyfredol: Oes
- Dimensiynau: Approximately 13 x 13 x 8 cm (packaged)
- Pwysau Eitem: 200 g (packaged)
- Gwlad Tarddiad: India
Nodyn: The physical dimensions and weight provided are for the packaged product. The module itself is compact.
8. Cynnyrch Drosview Fideo
Gwyliwch y fideo hwn am drosolwg gweledolview of the Electronic Spices BMS Module, demonstrating its physical characteristics and potential applications.
Fideo 1: Crynodeb byrview of the Electronic Spices BMS Module, highlighting its compact design and key features for battery management.
9. Gwarant a Chefnogaeth
Specific warranty information for this product is not provided in the available documentation. For technical support or warranty inquiries, please contact Electronic Spices directly through their official channels or the retailer from whom the product was purchased.
Gwybodaeth Gyswllt Gwneuthurwr:
Sbeisys ElectronigMain, Ismailpur Rd, near Gyan Mandir Chowk, F- Block, Jaitpur, New Delhi, Haryana 110044
Ffôn: 8929992403
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