Custom AAA NiMH (1.2V) Charging Station – 3D Printable

You can use this: Description This is a custom 3D printable charging holder designed for AAA NiMH rechargeable batteries (HR03, 1.2V). The design is compatible with standard AAA NiMH cells between 600mAh and 1000mAh, including 800mAh models like Varta, Panasonic Eneloop, Duracell, etc. ⚠️ Important: This holder is designed for NiMH chemistry only (1.2V nominal). Do NOT use with: Alkaline batteries Lithium batteries 1.5V disposable cells Li-ion / 10440 cells Charging must be done using a proper constant current NiMH charger circuit. Compatible Battery Specifications Size: AAA (HR03) Chemistry: NiMH (Nickel-Metal Hydride) Nominal Voltage: 1.2V Fully Charged Voltage: ~1.4–1.45V Capacity Range: 600mAh – 1000mAh Recommended Charging Parameters For 800mAh battery: Standard charge: 80mA (0.1C) for 14–16 hours Fast charge: up to 400mA (0.5C) with delta-V detection Always use proper charge control. AAA NiMH Battery Battery Charger Rechargeable HR03 1.2V Electronics DIY Power Charging Dock Maker