ZB2L3 - TP4056 - 8 Slot Charger-Discharger
thingiverse
Needed to test many 18650 batteries so I designed this capacity tester with 8 slots using ZB2L3 module (same as HW-586). Also, used 8 TP4056 modules for charging. Every port is independent, with the switch to turn on charging. When battery is inserted display shows voltage. If you turn on the switch it starts charging. If you press OK button it will start discharging and measuring capacity. You can set cut off voltage or use 2.5V by default. Don't use charge and discharge at the same time. Fan blows air through the top where TP4056 modules are located. Everything is designed so there are no supports required for printing. Print count: Batt_8X_button.stl 24x Batt_8X_holder.stl 2x Batt_8X_display.stl 2x LM2596_Mount.stl 2x Everything else 1x
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