12V24V 10A/20A/30A Dual USB PWM Solar Panel Regulator Battery Charge Controller

12V24V 10A/20A/30A Dual USB PWM Solar Panel Regulator Battery Charge Controller Product Features: 1. Use of high quality materials quality assurance 2. Clear picture quality large LCD screen adjustable parameters 3. Real-time temperature and humidity intimate alarm clock setting 4. Built-in short circuit protection open circuit protection reverse connection protection overload protection 5. Easy to use suitable for most scenes Description: 3 kinds of batteries can be charged lead-acid batteries (12V/24V batteries automatically identified) lithium-ion batteries lithium iron phosphate batteries! Controller default is B2 charging lithium-ion batteries (lithium batteries) battery type for B2 mode; using lead-acid battery controller battery type please set B1; lithium iron phosphate batteries set to B3. Supported battery types. B1 = lead-acid battery 12V/24V (automatic identification) B2=Lithium-ion battery (lithium battery) 3 strings of 3.7V = 11.1V B3=Lithium iron phosphate battery 4 strings of 3.2V=12.8V Package list: Solar controller*1