i have a buck converter and want to charge a battery with that but i don't have a smps or a pure dc sourse but have a 12 0 12 to 220v
Τροφοδοτικό Stabilized 2 Εισόδων 30A 12M30 220V AC/12V DC - Electronics World
Amazon.co.jp: Aexit LED DC 12V 4.2A Switching Power Supply Driver S-50-12 (Driver d'alimentation de commutation DC 12V 4.2A S-50-12 pour LED : DIY, Tools & Garden
12V DC 1000mA (1A) regulated switching power adapter - UL listed : ID 798 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Τροφοδοτικό 12V, 10A Σταθεροποιημένο σε μεταλλικό κουτί με κλειδαριά – 9 εξόδων – Κυριαζής
Amazon.co.jp: Electric Transformer for Electric Power Transformer Electronic Transformer Electronic Transformer Power Supply Driver Energy Saving Stable Output Voltage No Noise 110V to 12V (160W) : DIY, Tools & Garden
LED Driver Power Supply Transformer 12V/24V IP67 Waterproof 24W-360W DIY Strips | eBay
24VDC Input High Voltage Power Supply 30KV max. for DIY Electro-Spinning - MSK-ESPS-30-24V
Amazon.co.jp: Aexit LED AC 110V to DC 12V 8.3A 100W Switch Power Driver S-100-12(Pilote d'alimentation d'alimentation de commutateur AС-110 ν ? CC 12V 8.3A 100W pour LED : DIY, Tools & Garden
Amazon.co.jp: AC DC Converter 12V 15A DC Stabilized Power Supply with Wiring : DIY, Tools & Garden
Amazon.co.jp: Switching Power Supply Ac-dc Converter 12v Stabilized Power Supply Power Supply Transformer AC DC Converter Switching Power Supply (12V 10A) : DIY, Tools & Garden