Battery Tender BTL12A270CW 12V 4.5Ah 270CA BMS Lithium Engine Start Battery

Features:

• A built-in protection circuit board prevents the battery from overcharging, discharging, and over-drain
• When over-charge or over-discharge (voltage below a certain threshold) is detected, the BMS will shut off the battery (cannot charge/discharge) to prevent permanent damage
• Includes a battery activation switch on the Quick Disconnect Cable to activate battery charging
• Dimensions: 5.9 x 3.4 x 3.7 inches
• Weight: 2.2 lbs