{"product_id":"varta-aux9-silver-dynamic-agm-auxiliary-battery-12v-9ah-130a-ev-stop-start-s","title":"VARTA AUX9 Auxiliary Battery 12V 9Ah 130A AGM | Silver Dynamic Aux | 509 106 013","description":"\u003cp\u003eThe \u003cstrong\u003eVARTA AUX9 Silver Dynamic Auxiliary\u003c\/strong\u003e (part no. \u003cstrong\u003e509 106 013\u003c\/strong\u003e) is a 12V 9Ah 130A \u003cstrong\u003eAGM auxiliary battery\u003c\/strong\u003e — the small second battery many modern start-stop, hybrid and high-spec vehicles use to keep safety systems, comfort features and fuel-saving functions running seamlessly. If your car's dashboard is warning of an auxiliary\/backup battery fault, this is the type of part you need — confirm the exact match below before ordering.\u003c\/p\u003e\u003ch3\u003eKey features \u0026amp; benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeeps critical systems alive:\u003c\/strong\u003e supports the main battery so start-stop, safety devices and comfort electronics never lose power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed AGM technology:\u003c\/strong\u003e no free liquid electrolyte — maintenance-free, leak-resistant and vibration-tolerant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-quality replacement\u003c\/strong\u003e from the world's leading automotive battery brand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 9Ah \/ 130A format\u003c\/strong\u003e designed for dedicated auxiliary battery bays.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e⚠ Fitment — please confirm before buying\u003c\/h3\u003e\u003cp\u003eAuxiliary batteries are vehicle-specific in location and connector style, so \u003cstrong\u003ealways match against your existing auxiliary battery\u003c\/strong\u003e. An AGM auxiliary battery must always be replaced with an AGM auxiliary battery — fitting a different technology risks electrical faults.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTwo ways to confirm it fits:\u003c\/strong\u003e\u003c\/p\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck by registration (VRM):\u003c\/strong\u003e enter your reg in a battery-finder lookup, or send us your reg and we'll check.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch your existing part:\u003c\/strong\u003e compare the part number (509 106 013 \/ AUX9), voltage, capacity and dimensions (151 × 87 × 106 mm) printed on the auxiliary battery currently fitted.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e509 106 013 (AUX9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e9Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold Cranking Amps (EN)\u003c\/td\u003e\n\u003ctd\u003e130A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eAGM (Absorbent Glass Mat), sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L×W×H)\u003c\/td\u003e\n\u003ctd\u003e151 × 87 × 106 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase size\u003c\/td\u003e\n\u003ctd\u003eYTX9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 2.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer warranty\u003c\/td\u003e\n\u003ctd\u003e[MISSING — please confirm]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\u003cp\u003e1 × VARTA AUX9 Silver Dynamic Auxiliary AGM battery (509 106 013).\u003c\/p\u003e\u003ch3\u003eWhy buy from Motor Synergy\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree delivery\u003c\/strong\u003e — with you in 2 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30 days free returns\u003c\/strong\u003e, hassle-free.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal support:\u003c\/strong\u003e unsure about fitment? Contact us before you order and we'll check.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does an auxiliary battery do?\u003c\/strong\u003e Modern high-tech cars often carry two batteries: the main 12V starter battery and a small auxiliary battery that keeps safety and comfort systems powered, especially during start-stop events.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know my car uses one?\u003c\/strong\u003e Check your handbook, or look for a small second battery (often in the boot, engine bay or under a seat). A dashboard warning about the backup\/auxiliary battery is the usual sign it needs replacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I fit any 9Ah battery instead?\u003c\/strong\u003e No — an AGM auxiliary battery must be replaced with an AGM auxiliary battery of matching spec to avoid malfunctions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it hard to fit?\u003c\/strong\u003e Location varies by vehicle; some are simple, some need trim removal. If in doubt, have a garage fit it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat if it doesn't fit?\u003c\/strong\u003e 30-day free returns — but confirming the part number first is quicker for everyone.\u003c\/p\u003e","brand":"Motor Synergy Ltd","offers":[{"title":"Default Title","offer_id":57643533893963,"sku":"102|4016987167823","price":54.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1056\/6929\/6459\/files\/VartaAUX9-1.webp?v=1782946684","url":"https:\/\/www.motorsynergy.co.uk\/products\/varta-aux9-silver-dynamic-agm-auxiliary-battery-12v-9ah-130a-ev-stop-start-s","provider":"Motor Synergy Ltd","version":"1.0","type":"link"}