1. Bubuka
Thank you for choosing the FMS A400 3S/4S LiPo Battery Charger. This compact and efficient charger is designed to safely and effectively charge your 11.1V (3S) and 14.8V (4S) Lithium Polymer (LiPo) batteries. It is compatible with a wide range of FMS RC models, ensuring your batteries are always ready for optimal performance. Please read this manual thoroughly before use to ensure safe and correct operation.
2. Émbaran Kasalametan penting
- LiPo Battery Hazards: Lithium Polymer (LiPo) batteries are highly reactive and can be dangerous if not handled properly. Always follow the battery manufacturer's instructions.
- Ngeusi batre tanpa dijaga: Never leave charging batteries unattended. Always charge in a fire-safe area, away from flammable materials.
- Ventilasi: Pastikeun ventilasi anu cekap nalika ngecas pikeun nyegah panas teuing.
- Bener Voltage/Cell Count: Always verify the battery's voltage and cell count (3S or 4S) match the charger's setting before connecting. Incorrect settings can lead to severe battery damage or fire.
- Inspeksi Karusakan: Do not charge damaged, swollen, or punctured batteries. Discontinue charging immediately if the battery becomes hot, swells, or shows any signs of damage.
- Barudak jeung Pets: Jauhkeun carjer sareng batré jauh tina jangkauan barudak sareng piaraan.
- Sumber Daya: Use only the provided power adapter or a compatible, approved power source.
3. Eusi Paket
Mangga parios eusi pakét pikeun mastikeun yén sadaya barang aya:
- FMS A400 3S/4S LiPo Battery Charger Unit
- Kabel Daya AC

Figure 1: Generic LiPo Charger unit (Hot RC branded) and AC power cable. The FMS A400 charger will have similar components.
4. Produk Langkungview
The FMS A400 charger is a straightforward and reliable unit designed for ease of use. It features dedicated balance ports for 3S and 4S LiPo batteries and indicator lights to show charging status.
Fitur konci:
- Supports 3S (11.1V) and 4S (14.8V) LiPo batteries.
- Integrated balance charging for cell voltage equalization.
- LED indicators for charging status (Charging/Full).
- Desain kompak sareng portabel.
komponén:
- Input kakuatan: Nyambung ka kabel kakuatan AC.
- Palabuhan kasaimbangan: Dedicated ports for 3S and 4S battery balance leads.
- Indikator Status: LEDs (typically red for charging, green for full) for each cell or overall status.
5. Setup jeung Connection
- Sambungkeun Kakuatan: Plug the AC power cable into the charger's power input port, then plug the other end into a suitable wall outlet (100-240V AC).
- Nyiapkeun Batré: Ensure your LiPo battery is undamaged and at room temperature. Identify if it is a 3S (11.1V) or 4S (14.8V) battery.
- Connect Balance Lead: Locate the white balance connector on your LiPo battery. Carefully plug this connector into the corresponding balance port on the charger (labeled "3S" or "4S"). Ensure the connector is inserted correctly and fully seated.
- Connect Main Discharge Lead (Optional/If applicable): Some chargers may require the main discharge lead (e.g., XT60, T-Plug) to be connected for charging. Refer to your battery's specific instructions. The FMS A400 primarily uses the balance port for charging.
Video 1: A general guide on connecting a 2S LiPo battery to a basic SSUPCHG balance charger. The connection process is similar for the FMS A400 charger.
6. Operation (Charging)
- Once the battery's balance lead is correctly connected to the appropriate port (3S or 4S), the charger will automatically begin the charging process.
- The status indicator LEDs will illuminate red (or similar color) to indicate that charging is in progress. Each cell's LED may light up individually or a single overall charging LED will be active.
- When the battery is fully charged, the status indicator LEDs will turn green (or similar color) for all cells, or the overall charging LED will change to green.
- Once charging is complete, disconnect the battery from the charger. First, remove the balance lead, then any main discharge lead if connected.
Catetan: The FMS A400 is a simple balance charger. It automatically detects the cell count (3S or 4S) based on the port used and charges accordingly. There are no manual settings for charge current or voltage on this model.
7. Pangropéa sareng Panyimpenan
- beberesih: Keep the charger clean and free from dust and debris. Use a dry, soft cloth to wipe the surface. Do not use solvents or abrasive cleaners.
- Panyimpenan: Store the charger in a cool, dry place away from direct sunlight, moisture, and extreme temperatures.
- Panyimpenan batré: Always store LiPo batteries at a "storage charge" level (typically 3.8V per cell) if not used for an extended period. Do not store fully charged or fully discharged LiPo batteries.
- Perawatan kabel: Inspect all cables and connectors regularly for any signs of wear or damage. Replace damaged cables immediately.
8. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Charger teu hurung. | No power from outlet; loose power cable. | Check wall outlet; ensure power cable is securely connected to charger and outlet. |
| Battery not charging (no red LED). | Loose balance connection; incorrect balance port used; battery too low/damaged. | Ensure balance lead is fully inserted into the correct 3S or 4S port. Inspect battery for damage. |
| Battery gets excessively hot during charging. | Damaged battery; internal short circuit. | Immediately disconnect the battery. Do not continue charging. Dispose of the battery safely. |
| Ngecas butuh lila teuing. | Battery capacity is very high; battery is deeply discharged. | This is a basic charger with a fixed charge rate. High capacity or deeply discharged batteries will naturally take longer. |
9. Spésifikasi
| Fitur | Rincian |
|---|---|
| Modél | A400 |
| Masukan Voltage | AC 100-240V |
| Jenis Batré anu Dirojong | LiPo (Polimér Litium) |
| Cell Count Supported | 3S (11.1V) and 4S (14.8V) |
| Muatan Ayeuna | Fixed (specific current not provided in product data, typically around 0.8-1.5A for basic chargers) |
| Diménsi | 3 x 2 x 0.39 inci |
| Item Beurat | 1.76 ons |
| Produsén | FMS |
10. Garansi jeung Rojongan
For warranty information, technical support, or service inquiries, please contact FMS customer service directly. Refer to the product packaging or the FMS official websitus pikeun wincik kontak nu paling up-to-date.