A4 - Battery charger ISDT - Free user manual and instructions
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| Product Type | Battery Charger |
| Brand | ISDT |
| Model | A4 |
| Input Voltage | AC 100-240V 50/60Hz |
| Cell Count Range | 1-4S LiPo/LiFe/Li-ion |
| Charge Current Range | 0.1A - 4.0A |
| Discharge Current | Max 1.0A |
| Balance Current | 400mA per cell |
| Supported Battery Types | LiPo, LiFe, Li-ion, NiMH, NiCd, Pb |
| Charging Modes | Charge, Balance, Discharge, Storage |
| Display | 2.4" TFT LCD |
| Control Interface | Touchscreen + push buttons |
| Safety Protections | Reverse polarity, overcharge, over-temperature, short circuit |
| Dimensions (approx.) | 110 x 90 x 35 mm |
| Weight (approx.) | 350 g |
| Operating Temperature | 0°C - 45°C |
| Storage Temperature | -20°C - 60°C |
| Cooling System | Internal smart fan |
| Repairability | Modular design, replaceable fan and PCB |
| Included Accessories | Charger, AC power cord, balance board, manual |
| Cleaning Instructions | Wipe with dry cloth, avoid water and solvents |
| Firmware Update | Supported via USB connection |
Frequently Asked Questions - A4 ISDT
What battery types does the ISDT A4 support?
The ISDT A4 supports multiple chemistries including LiPo, LiFe, Li-ion, NiMH, NiCd, and Lead-acid batteries. This versatility makes it suitable for RC models, drones, and hobby devices.
How do I set the charge current?
To set the charge current, use the touchscreen to navigate to the charge mode, then select the desired current value (0.1A to 4.0A). The charger will automatically adjust based on the battery capacity for optimal charging.
Can I charge a 3S LiPo battery with this charger?
Yes, the ISDT A4 is compatible with 1 to 4 cell LiPo batteries. Select the appropriate cell count or the charger will detect it automatically during connection.
What is the maximum charge power?
The maximum charge power depends on the battery voltage and current. With a 4S LiPo (16.8V) and 4A output, the max power is approximately 67.2W. The charger is designed for compact and efficient operation.
How does balance charging work?
Balance charging ensures each cell in a multi-cell pack is charged to the same voltage. The balance board connects to the cell leads, and the charger monitors and equalizes each cell individually, extending battery life.
Is the charger suitable for NiMH batteries?
Yes, the ISDT A4 supports NiMH and NiCd batteries. Simply select the appropriate battery type and the charger will use the correct charge algorithm, including peak detection for automatic cutoff.
What safety features does it have?
The charger includes multiple safety protections: reverse polarity, overcharge, over-temperature, and short circuit protection. Additionally, the built-in smart fan helps prevent overheating during operation.
Can I use this charger with a car battery?
Yes, it can charge lead-acid (Pb) batteries. Select the Pb battery type and set the appropriate voltage (e.g., 12V). However, the low charge current (max 4A) is more suitable for small batteries or maintenance, not full-size car batteries.
How do I update the firmware?
Connect the charger to your computer via USB and use the official ISDT PC software or mobile app to update the firmware. Always ensure a stable connection and follow the instructions in the manual.
What does the storage mode do?
Storage mode adjusts the battery voltage to a safe level (3.85V per LiPo cell) for long-term storage. This prevents over-discharge or overcharge, maintaining battery health when not in use.
User questions about A4 ISDT
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USER MANUAL A4 ISDT
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Product information
Brand : ISDT
Model : A4
Category : Battery charger