Adaptador de fuente de alimentación de alta calidad, convertidor de 13,5mm x 400mm-100mm, 240V, 16V, 18V, 19V, 200MA, 300MA, 5,5, 500mA, 600Ma, CA/CC, 2,1 V-2,5 V - AliExpress
AC 100-240V DC 21V 0.4A 0.5A 400MA 500ma Adapter Power Supply 21 V Volt Charger for 18650 Lithium Battery DC5.5*2.1MM - AliExpress
Power 21V AcAc Adapter Replacement For Model Hha21-300 Hha21-400 Hha21300 Hha21400 Ac21v 300Ma 400Ma 21Vac 0.3A 0.4A1A Class 2 Transformer Power Supply Cord Charger Psu (W/Barrel Tip.) - Newegg.com
High quality DC 23V 400mA 0.4A Replacement AC Adaptor for TITAN TTB528CHR Battery Charger 4 Cordless Drill - AliExpress
Customized 21V Charger 400ma 500ma 1.4A 1.5A 1A 2A 1500ma 1000ma US EU UK AU Plug AC DC Power Adapter - Buy Customized 21V Charger 400ma 500ma 1.4A 1.5A 1A 2A 1500ma
AC DC Adapter: 21v, 24v, 29v, 400ma, 1.5a, 2a, 220v to 12v Power Supply
AC/DC adapter 15V 19V 20V 21V 22V 23V 24V 25V 26V 27V 28V 1A 1.5A 2A 1000mA 2000mA Switching power supply DC 5.5mm x 2.1mm-2.5mm - AliExpress
Source 21v 400ma ac dc adapter 8.4w dc 21 volt Au plug on m.alibaba.com