Rock Solid 4 Wire Battery Resistance Capacity Tester Jig For 18650 26650 21700 Cells Boasts Smooth Hand Tight Clamping And A Plus A Minus V Plus V Minus Terminals For No Fuss Zero Calibration

Compact 4 Wire Battery Capacity And Resistance Test Bracket
✔️ 5A hand clamp adds zero cal shorts and 4mm banana ports

You can bolt this testing bracket to any workbench and dial in quick discharge numbers on 18650, 26650, AA, AAA, or custom coils. The split wire layout keeps your multimeter reads clean so you get straight facts without extra rigging. Grab this single unit for straightforward cell grading right out of the box.

✅ Four separate wires cut current and voltage noise to keep your digital multimeter accurate
✅ Simple hand tightening loop lets you swap cells in seconds without touching a screwdriver
✅ Positive and negative posts link together for fast zero calibration before every run
✅ Copper banana plugs and 16 to 20 gauge silicone leads handle up to ten amps peak draw
✅ Single black frame measures 135 millimeters by 40 millimeters by 40 millimeters or 5.31 by 1.57 inches flat

💡 Why does a four wire cell tester jig give more accurate resistance readings than a basic two lead clamp?
A four wire setup separates the heavy current loop from the delicate voltage sampling line so your meter never sees lead resistance.
- The dedicated power and sense posts stop cable impedance from messing up your low ohm numbers
- This handy design saves time when matching parallel groups for DIY power banks or flashlights
- You can lock in steady discharge curves without swapping clips or fighting loose contact points

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