Amazon.com: New for EGO Battery 56V 5.0 Ah Replacement for BA2800 BA4200 BA1400 5000mAh Lithium Ion EGO Batteries Compatible with All 56V Power Tools CS1604 CS1804 CS1403 HT2400 LB6504 LB5804 LB6500 LB4800
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EGO 56-Volt 2.5 Ah Lithium Ion (li-ion) Battery in the Cordless Power Equipment Batteries & Chargers department at Lowes.com