300A load tester for e-rickshaw 12V deep-cycle batteries

Find weak batteries fast under a real 300A fixed load. Test each 12V block from a 48V pack individually for accurate, apples-to-apples results.

For 48V e-rickshaws (4×12V), always disconnect links and test each 12V battery individually.

🔋 300A Fixed Battery Load Tester — For 100Ah+ Batteries (India)

Automotive 100–150Ah: Ideal Automotive 150–200Ah: Less load but OK E-rickshaw/Tubular 100–160Ah: Suitable ≤90Ah: ❌ Not Suitable

Fixed 300A load — use only on big 12V lead-acid batteries. Not for 70/80/90Ah.

📌 What battery types can you test?

  • ✔ 12V automotive batteries (100–200Ah)
  • ✔ 12V tubular batteries used in e-rickshaws (100–160Ah)
  • ✔ 12V deep-cycle lead-acid batteries
  • ❌ Lithium: Not supported
  • ❌ 48V/60V/72V direct testing: Not supported

Always test 48V systems by checking each 12V battery separately.

📊 Voltage result guide after 10–15 seconds (300A load)

Voltage under 300A Result Condition
11.0V–12.6V GOOD Battery is strong
10.6V–10.9V WEAK Battery losing capacity
≤10.5V BAD Immediate replacement

Important: Read voltage only after the tester has been ON for 10–15 seconds.

⚠️ Precautions while testing

  • Use only on 12V lead-acid batteries.
  • Allow cooling between tests.
  • Ensure clamp connection is tight.
  • Keep tester away from plastic and wiring.
  • Do not test 70/80/90Ah batteries.

📘 Quick steps to test

  1. Charge battery to at least 75%.
  2. Disconnect battery from vehicle.
  3. Connect tester clamps (red +, black –).
  4. Turn ON and load for 10–15 seconds.
  5. Note voltage reading → match table above.

Repeat test after cooling for confirmation.

₹3,750 + GST

Price valid till 31 March 2026

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🎥 How to use a 300A load tester

❓ Frequently Asked Questions

Can it test 48V e-rickshaw batteries?

Yes — but only one 12V battery at a time. Do not test the full 48V pack directly.

Is this suitable for lithium batteries?

No. Lithium/LiFePO4 must not be tested with load testers.

How long should I apply the load?

10–15 seconds. Then allow cooling before retesting.

What is the correct voltage reading?

11.0–12.6V = Good
10.6–10.9V = Weak
≤10.5V = Bad

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