Is your Xhorse Dolphin XP005L Key Cutting Machine not charging even though it’s brand new? Don’t rush to replace parts just yet. You can quickly test the battery condition with a few simple steps using a multimeter.
Step 1: Measure the Battery Voltage
Start by removing the battery module from the machine.
- Use a multimeter to test between Point A and Point B
- A healthy battery should show around 3.3V
If the reading is far off, the battery may already have an issue.
Step 2: Test the Circuit Switch
Next, perform a quick switch test to verify proper circuit function.
- Short the switch terminals
- Measure voltage between Point A and Point D
- The expected reading should be approximately 28V
This confirms whether the internal circuit is working correctly.
Step 3: Observe Voltage Drop
Now check how the battery behaves when disconnected.
- Disconnect the interface
- Monitor the voltage on your multimeter
- The voltage should gradually drop to 0V
A normal battery will discharge smoothly rather than dropping instantly.
Test Results Explained
Pass all three tests:
- Your battery is in good condition — no replacement needed.
Fail any step:
- The Xhorse Dolphin XP005L battery cell is likely faulty and should be replaced.
Pro Tip
Before assuming a charging issue is caused by the machine itself, always test the battery first. A quick diagnosis like this can save both time and unnecessary repair costs.
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