Power and battery issues in robot vacuums typically involve units that won’t turn on, won’t charge, shut down mid-clean, or show reduced runtime. In most repairs, the cause is battery cell aging, dirty charging contacts, dock alignment problems, or internal power connection wear. A common pattern we see is gradual capacity loss accelerated by daily use, heat, and deep discharge cycles. These repairs are usually low to moderate difficulty with good success rates when tested carefully. Always confirm the fault before replacing the battery or power components.