Not as high tech na may readout like that yung sa akin. What I use is a 12V car battery charger made by local company Panther (yung gumagawa ng mga transfromer & AVR) - para sa mga vehicles namin that don't get driven much.

This is their 24V version (for trucks). Parehong pareho lang sa 12V:

PBA 124: Panther Automatic Battery Charger 1A Output Current, 24V DC Output Voltage - Panther

I think the price was around 3k+ sometime back. Wala ako tiwala from those cheap ones you can get from overseas on Shoppee or Lazada. They may work fine... but since the charging and reconditioning cycle can take a few hours, I dont want to leave something na hindi binabantayan for that long with something of dubious make.

Maya maya eh: "ano yung amoy sunog???"