===== HB21 CHARGER PRODUCT PAGE CSS (house style) ===== /.hb21-spec-wrap max-width: 1100px; margin: 0 auto 40px auto; padding: 0 20px; text-align: center;.hb21-spec-wrap h2,.hb21-spec-wrap h3,.hb21-spec-wrap p,.hb21-spec-wrap li text-align: center;.hb21-product-intro max-width: 920px; margin: 0 auto 30px auto;.hb21-product-intro h2 margin: 0 0 14px 0; font-size: 2rem; line-height: 1.2;.hb21-product-intro p margin: 0 auto 14px auto; line-height: 1.7; max-width: 900px;.hb21-spec-grid display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 30px; text-align: left;.hb21-spec-card background: #f7f7f7; border-radius: 14px; padding: 24px; text-align: left;.hb21-spec-card h3 margin: 0 0 16px 0; font-size: 1.25rem; text-align: left;.hb21-spec-card ul list-style: none; padding: 0; margin: 0;.hb21-spec-card li margin: 0 0 10px 0; line-height: 1.55; text-align: left;.hb21-spec-card strong font-weight: 700;.hb21-warranty-note margin-top: 28px; font-size: 1rem; line-height: 1.6; text-align: left;.hb21-section max-width: 1100px; margin: 0 auto; padding: 34px 20px; text-align: center;.hb21-section h2,.hb21-section h3 font-size: 2rem; line-height: 1.2; font-weight: 700; margin: 0 0 14px 0; text-align: center;.hb21-section p max-width: 900px; margin: 0 auto 14px auto; line-height: 1.65; text-align: center;.hb21-section a,.hb21-faq-item a color: #0066cc; text-decoration: underline;.hb21-footnote font-size: 0.9rem; color: #555; margin-top: 10px;.hb21-image-full max-width: 1100px; margin: 0 auto; padding: 14px 20px;.hb21-image-full img display: block; width: 100%; height: auto; margin: 0 auto; border-radius: 8px;.hb21-video-wrap max-width: 1100px; margin: 0 auto; padding: 14px 20px;.hb21-video-wrap.hb21-video-embed position: relative; width: 100%; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px;.hb21-video-wrap.hb21-video-embed iframe position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;.hb21-card-grid max-width: 1100px; margin: 0 auto; padding: 14px 20px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px;.hb21-card text-align: center;.hb21-card img display: block; width: 100%; height: auto; border-radius: 8px; margin-bottom: 10px; object-fit: cover; aspect-ratio: 4 / 3;.hb21-card h3 margin: 0 0 6px 0; font-size: 1.1rem; line-height: 1.3; text-align: center;.hb21-card p margin: 0; line-height: 1.5; font-size: 0.95rem; text-align: center;.hb21-card-compact h3 font-size: 0.95rem; margin-bottom: 4px;.hb21-card-compact p font-size: 0.85rem; line-height: 1.4;.hb21-faq-wrap max-width: 980px; margin: 40px auto 20px auto; padding: 0 20px; text-align: center;.hb21-faq-wrap h2 font-size: 2rem; line-height: 1.2; margin-bottom: 20px; text-align: center;.hb21-faq-item background: #f7f7f7; border-radius: 12px; padding: 18px 20px; margin-bottom: 14px; text-align: left;.hb21-faq-item h3 margin: 0 0 8px 0; font-size: 1.1rem; line-height: 1.4; text-align: left;.hb21-faq-item p margin: 0; line-height: 1.65; text-align: left; @media (max-width: 989px).hb21-spec-grid grid-template-columns: 1fr;.hb21-card-grid grid-template-columns: repeat(2, minmax(0, 1fr));.hb21-product-intro h2,.hb21-section h2,.hb21-section h3,.hb21-faq-wrap h2 font-size: 1.7rem; @media (max-width: 749px).hb21-card-grid grid-template-columns: 1fr; Overview
The BLUETTI Charger 2 is a DC-DC charger that refills a power station from your vehicle while you drive, from solar, or from both at once. It draws up to 800W from the alternator and up to 600W from solar panels, and delivers up to 1200W into the power station through its charging output (CHG). Charging starts when the engine runs and stops when you park, so the starter battery is not drained while the vehicle sits.
It also works in the other direction. Its bidirectional power port (BAT) carries up to 1000W to or from a BLUETTI auxiliary battery, a dedicated 48V output (DC Panel) runs a BLUETTI DC Hub for 12V and 24V accessories, and reverse charging can put power back into a flat starter battery. The BLUETTI app sets the charging voltage for your power station and monitors the system over Bluetooth or Wi-Fi. Installation is a wiring job in the vehicle: if you're unsure how it fits your setup, we're happy to help before you buy. Key Features:
- Charging Output (CHG): 12V to 56V, 24A, 1200W max
- Alternator Input (ALT): 12.8V at 62.5A or 25.6V at 31.3A, 800W max
- Solar Input (PV): 13V to 50V, 20A, 600W max
- Auxiliary Battery Port (BAT): 19.2V at 52A, 25.6V at 39A or 51.2V at 19.5A, 1000W max
- DC Hub Output (DC Panel): 40V to 58.5V, 600W max, shared across all the DC Hub's ports
- Reverse Charging: 100W
- Protections: short circuit, reverse polarity, overcurrent, over-voltage and under-voltage
- Fuse: 75A LISTBREA
