1.How to Use Topdon T90A Charger Automax Tools India
- Nowadays, vehicle battery discharge is a common problem. Many times the battery of a car or bike suddenly goes down and we get upset. In such a situation, if you have a smart auto battery charger, then this problem can be easily solved.
- Today we will tell you how to use Topdon T90A charger step-by-step, so that you can charge the battery safely and smartly at home or in your workshop.
2.What is Topdon T90A Charger?
- The Topdon T90A (Tornado90000) is a smart battery charger and power supply specially designed for workshops, dealerships and professional mechanics.
- It can charge both 12V and 24V batteries.
- It has a multi-stage charging system that charges the battery safely.
- Safety features like reverse polarity and overheating are built-in.
- It is officially available in India by Automax Tools India.
- Features that make it the best car battery charger
- If you are wondering why Topdon T90A when there are so many chargers in the market?
- Here are some features that put it in the list of best car battery chargers:
- Smart Modes: Charging, Repair, and Power Supply Mode.
- Digital Display: Charging status and voltage can be easily seen.
- Fast and Safe Charging: Keeping the health of the battery in mind.
- 12V/24V Support: For Car, Bike, Truck.
- Workshop Friendly: Ability to provide continuous power supply.
3.How to Use Topdon T90A Charger – Step by Step Guide
If you are wondering how to use battery charger or how to use a battery charger 12v on a car, here is a simple guide:
1. Battery and Charger Preparation
- First of all, make sure the vehicle is turned off.
- The battery terminals are clean.
2. Correct the connection
- Connect the red clip (positive) to the + terminal of the battery.
- Connect the black clip (negative) to the – terminal of the battery.
- (T90A automatically alerts in case of wrong connection, which keeps the battery safe.)
3. Select the mode
- If you want to charge a 12V battery of a car or bike → select 12V mode.
- If you have a 24V battery of a truck or a large commercial vehicle → select 24V mode.
- You can select Repair Mode for battery repair.
4. Monitor charging
- The voltage and charging progress will be displayed on the display.
- If needed, it can also be used in power supply mode.
5. Disconnect safely
- After charging is complete, remove the negative clip first, then the positive.
- The battery is now fully charged and ready for use.
- Battery Charger How to Use – Easy Tips
- Always charge the battery in a ventilated place.
- Do not overcharge the battery.
- Do not leave the battery terminals loose.
- If the battery is very old, try Repair Mode.
- Common Mistakes People Make
- Connecting to the wrong terminal.
- Charging the battery in a wet place.
- Not selecting the battery type.
- Leaving the charger connected even after charging is over.
- Topdon T90A prevents these mistakes, but it is important to be careful.
4.Why Topdon T90A is the Best Car Battery Charger for Workshops
- Car, bike and truck all covered with a single charger.
- ECU update or repair easy with power supply mode.
- Top-rated among professional tools.
- Available from Automax Tools India, a trusted name in automobile diagnostic and battery tools.

5.How to Use a Battery Charger 12V on a Car – Quick Recap
- If you only need to charge a 12V car battery:
- Positive clip → Positive terminal
- Negative clip → Negative terminal
- Select 12V mode
- Monitor until charging is complete
- Safely disconnect
FAQ (Questions & Answers)
Q1. Can the Topdon T90A charge a fully discharged battery?
Yes, Repair Mode tries to restore a completely down battery.
Q2. Can it be used to charge a bike battery?
Yes, it is safe for 12V bike batteries as well.
Q3. Can I leave it connected to the battery overnight?
Yes, the smart charging technology prevents overcharging.
Q4. Is it only for workshops or can it be used at home as well?
Both – at home and in professional workshops.
Conclusion
- If you want a charger that charges your car, bike and truck battery safely and smartly, then the Topdon T90A is a great choice.
- It is not just a charger but a professional auto battery charger made for workshops and dealerships.
- Automax Tools India makes it available in the Indian market, and it can truly be called the best car battery charger.

