About the Car hea ter ：150W Car Heater Portable Electric Heating Fan Defogger Defroster Demister 12V. Power: 170W. [Battery Powered] This space heater is compatible with for BL15 BL1820 BL1530 BL1840 BL1850 BL1860 etc., 18V-48V lithium ion battery (without).
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