ENABLE MORE CHARGING METHODSWith the help of D050S DC Enhancer you can charge the B300/B230 via the 12V/24V cigarette lighter port in your car or lead-acid batteries.Application Models: B230/B300/AC200MaxFunction:* Enable more charging methods like solar, car, and lead-acid battery charging.* 500W Max input.* Increase the PV input rate to 1400W for the BLUETTI AC200Max.