AJC® Replacement for Best Power FERRUPS FE-4.3K UPS Battery — 12V 35Ah

AJC® replacement battery engineered to fit Best Power FERRUPS FE-4.3K UPS systems. This sealed lead-acid (AGM) unit is intended as a direct OEM-style swap to restore reliable backup power. Technical specifications: Voltage: 12V (12 Volts) Capacity: 35Ah Terminals: NB Chemistry: Sealed Lead Acid (AGM) Length: 7.76 in Width: 5.16 in Height: 6.38 in Weight: 23.6 lbs Important notice: Our products are not affiliated with or authorized by Best Power. Why choose AJC® replacement batteries: - High quality at an affordable price for thousands of compatible devices. - Manufactured to match OEM dimensions and performance for an easy, precise fit. - Millions of units sold worldwide. - UL recognized component. - Purchase protected by a simple 30-day return policy and a 12-month warranty. SLA battery care tips: - Recharge after each use to prevent loss of performance. - Avoid fully discharging the battery. - Inspect terminals periodically for corrosion or wear that could cause failure. - Always store the battery fully charged. - Keep stored in a cool, dry place (68°F/20°C). - Recycle batteries — do not dispose of them in regular trash.