{"product_id":"victron-battery-balancer-24v-bba000100100","title":"Victron Battery Balancer - BBA000100100","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Energy Battery Balancer — BBA000100100\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Energy Battery Balancer equalises the state of charge across two series-connected 12V lead-acid batteries in a 24V bank. It is designed for installers and system integrators working with off-grid, marine, and vehicle installations where uneven cell ageing or charging causes one battery to consistently over- or under-charge.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBalances two 12V batteries connected in series to form a 24V bank, preventing voltage divergence over time.\u003c\/li\u003e\n  \u003cli\u003eActivates automatically when the 24V bank voltage exceeds 27.3V, drawing current from the higher-voltage battery to equalise both.\u003c\/li\u003e\n  \u003cli\u003eMaximum balancing current of 1A, sufficient to correct typical charge imbalances in lead-acid batteries without stressing the cells.\u003c\/li\u003e\n  \u003cli\u003eCompatible with all lead-acid battery types including flooded, AGM and gel chemistries.\u003c\/li\u003e\n  \u003cli\u003eLED indicator shows when balancing is active, providing a simple visual confirmation of operation.\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.34 kg, suitable for installation in confined spaces on boats, vehicles and off-grid cabinets.\u003c\/li\u003e\n  \u003cli\u003eCan be used in parallel with additional Battery Balancers to manage larger series\/parallel 24V battery banks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eWhen two 12V batteries are wired in series to create a 24V system, small differences in internal resistance, capacity and self-discharge rate cause the batteries to charge and discharge unevenly. Over time, one battery is repeatedly overcharged while the other is undercharged, accelerating degradation and shortening the life of the bank. The Battery Balancer addresses this directly by monitoring the mid-point voltage and diverting current from the higher-voltage battery to the lower-voltage one whenever the bank is being charged above 27.3V.\u003c\/p\u003e\n\n\u003cp\u003eThe balancing process is passive in the sense that it requires no manual intervention. Once wired in, the unit monitors continuously and activates only when needed. The 1A balancing current is deliberately modest: it is enough to correct the gradual drift that occurs in real-world installations without generating excessive heat or requiring additional thermal management. For larger battery banks made up of multiple series-parallel strings, two or more Battery Balancers can be deployed together to maintain balance across the full bank.\u003c\/p\u003e\n\n\u003cp\u003eThis product is specific to 24V lead-acid systems. It is not suitable for lithium battery chemistries, which manage cell balancing internally through a dedicated battery management system. Always verify battery chemistry and system voltage before specifying this unit.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border: 2px solid #f87c24; border-collapse: collapse; width: 100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f87c24; color: #ffffff;\"\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eSKU\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eBBA000100100\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eSystem Voltage\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e24V (2 x 12V series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eActivation Voltage\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e27.3V (24V bank)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eMaximum Balancing Current\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e1A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eCompatible Battery Types\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eLead-acid (flooded, AGM, gel)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eLED Indicator\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eYes (balancing active)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eWeight\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e0.34 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eGTIN\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e8719076020950\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOff-grid solar systems using a 24V lead-acid battery bank made up of two series-connected 12V batteries.\u003c\/li\u003e\n  \u003cli\u003eMarine and narrowboat installations where 24V lead-acid banks are common and battery access for maintenance is limited.\u003c\/li\u003e\n  \u003cli\u003eVehicle and motorhome leisure battery systems wired at 24V.\u003c\/li\u003e\n  \u003cli\u003eTelecoms and remote monitoring installations using 24V flooded or AGM battery backup.\u003c\/li\u003e\n  \u003cli\u003eAny 24V lead-acid system where battery age, capacity mismatch or differing self-discharge rates are causing charge imbalance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Victron Energy Battery Balancer (BBA000100100)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThe Battery Balancer must be connected to the mid-point of a 24V series battery bank (the junction between the positive terminal of the lower battery and the negative terminal of the upper battery) as well as to the positive of the upper battery and the negative of the lower battery. Wiring should be carried out by a qualified electrician or experienced installer familiar with battery systems. Ensure the unit is used only with lead-acid batteries in a 24V configuration. Do not use with lithium batteries. For off-grid solar installations, a qualified installer should verify that the overall system design, including charge controller settings, is compatible with the balancer's activation threshold.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":47486537204046,"sku":"BBA000100100","price":35.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/victron-battery-balancer-bba000100100-212552.jpg?v=1747941520","url":"https:\/\/voltaconsolar.com\/products\/victron-battery-balancer-24v-bba000100100","provider":"VoltaconSolar","version":"1.0","type":"link"}