{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f3dd28b78e17","name":"12V 140A Automatic Dual Battery Isolator Voltage Sensitive Relay Kit","sku":"44-3596","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":66.49,"formatted":"£66.49"},"summary":"Dirt Racing 12V 140A Automatic Dual Battery Isolator, Voltage Sensitive Relay Kit A 12V 140A automatic dual battery isolator kit from Dirt Racing, using a voltage sensitive relay to manage charge s…","attributes":[{"label":"Date Created","value":"01/09/2026 15:36:43"},{"label":"Date Last Updated","value":"01/09/2026 15:40:21"},{"label":"Manufacturer","value":"Dirt Racing"},{"label":"On Order","value":"2"},{"label":"Price Last Updated","value":"24/09/2026 11:45:43"},{"label":"Stock Id","value":"354940"},{"label":"Weight Grams","value":"0"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/44-3596/adf19b656a840960.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/44-3596/adf19b656a840960.png"],"description":"Dirt Racing 12V 140A Automatic Dual Battery Isolator, Voltage Sensitive Relay Kit A 12V 140A automatic dual battery isolator kit from Dirt Racing, using a voltage sensitive relay to manage charge s…","descriptionMarkdown":"### Dirt Racing 12V 140A Automatic Dual Battery Isolator, Voltage Sensitive Relay Kit\n\nA 12V 140A automatic dual battery isolator kit from **Dirt Racing**, using a voltage sensitive relay to manage charge sharing between a vehicle's starter battery and a separate auxiliary or leisure battery. It monitors system voltage, connects both batteries automatically when a charging source is present and separates them when voltage drops, so the alternator can charge the auxiliary battery with less risk of connected accessories discharging the starter battery.\n\n### Key Features\n\n- Automatic linking of starter and auxiliary batteries during charging\n\n- Automatic isolation when charging stops\n\n- Dual-sensing operation when either connected battery is receiving charge\n\n- Primary-battery-priority charging operation\n\n- Helps prevent auxiliary loads from draining the starter battery\n\n- No manual switching required\n\n- LED status indication\n\n- Surge protection for connected electronics\n\n- Compact format for vehicle and leisure battery installations\n\n- Intended for suitable 12V charging systems, with correct cable sizing and circuit protection\n\n- Check suitability for smart or variable-voltage alternators and lithium battery systems before installation\n\n### Specifications\n\n- System voltage: 12V DC\n\n- Continuous current rating: 140A\n\n- Intermittent current capacity: 170A\n\n- Cut-in voltage: Approximately 13.3V\n\n- Cut-out voltage: Approximately 12.8V\n\n- Switching delay: Approximately 5 seconds\n\n- Operating temperature range: -30°C to +105°C\n\n- Ingress protection rating: IP65\n\n- Control type: MCU-controlled voltage sensitive relay\n\n- Dimensions: Approximately 67.5 x 67.5 x 53.5mm\n\n- Weight: Approximately 200g","weightGrams":0,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/12v-140a-automatic-dual-battery-isolator-voltage-sensitive-relay-kit","buyOneNow":null,"basketWithThis":null}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}