--- url: https://baterias.com/gb/motorcycle-batteries/harley-davidson/bad-boy title: "Batteries Harley-Davidson Bad Boy" type: modellanguage: es application: "Motorcycle Batteries" brand: "Harley-Davidson" model: "Bad Boy" updated: 2026-05-26 source: baterias.com --- # Batteries Harley-Davidson Bad Boy **baterias.com** · Model **URL:** https://baterias.com/gb/motorcycle-batteries/harley-davidson/bad-boy > baterias.com > Motorcycle Batteries > Harley-Davidson > Bad Boy ## Verified selection - Application: Motorcycle Batteries - Make: Harley-Davidson - Model: Bad Boy What battery does a Harley-Davidson Bad Boy take? The same Bad Boy may fit up to three different battery types depending on engine, registration year and electrical equipment. To get it right we need to narrow these two details. Next step: enter engine and year of your Bad Boy With engine and year we filter among the variants Harley-Davidson fitted across production of the Bad Boy and we show the exact battery compatible with your vehicle. What you will see on every battery compatible with your Harley-Davidson Bad Boy Capacity (Ah) : amp-hours driving electrical autonomy. Cold-cranking amps (CCA) : cold-start power, critical in winter. Dimensions (L×W×H) : so it fits your vehicle tray. Positive terminal : location (right/left) per manufacturer layout. Recommended : the reference Harley-Davidson fits at the factory on your Bad Boy. Every reference is audited by our technical team to ensure exact fit with your Harley-Davidson Bad Boy. 24h delivery and technical support for the swap. See all batteries compatible with Harley-Davidson . ## Available engines (4) - [1340 Bad Boy](/gb/motorcycle-batteries/harley-davidson/bad-boy/1340-bad-boy-fxstb-37-kw-50cv) - [1340 Bad Boy](/gb/motorcycle-batteries/harley-davidson/bad-boy/1340-bad-boy-fxstb-37-kw-50cv) - [1340 Bad Boy](/gb/motorcycle-batteries/harley-davidson/bad-boy/1340-bad-boy-fxstb-41-kw-56cv) - [1340 Bad Boy](/gb/motorcycle-batteries/harley-davidson/bad-boy/1340-bad-boy-fxstb-41-kw-56cv) ## Frequently asked questions ### What battery does the Harley-Davidson Bad Boy use? The Harley-Davidson Bad Boy may use different batteries depending on engine and equipment. Check dimensions and positive terminal position before purchasing. ### Can I install a higher capacity battery in my Harley-Davidson Bad Boy? Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Harley-Davidson Bad Boy battery compartment and the positive terminal position matches. ### What type of battery does my motorcycle need? Motorcycles can use GEL, AGM, or conventional batteries. GEL batteries are ideal for occasional use. AGM batteries are the best option for heavy use or high-power motorcycles. Always check the polarity before installation. ### How do I know the polarity of my motorcycle battery? Polarity indicates which side has the positive (+) terminal. This is critical for motorcycles because some models have the positive terminal on the left and others on the right. Check the label on your current battery or the manufacturer's manual. ### Can I install my motorcycle battery myself? Yes. First disconnect the negative (−) wire and then the positive (+) wire. When installing the new one, connect the positive (+) wire first and then the negative (−) wire. Always respect the correct polarity. ### How do I find the right battery for my vehicle? Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp. ### What warranty do the batteries have? As they are consumable items, car batteries have a 2-year warranty, truck batteries a 1-year warranty, and all others (motorcycle batteries, cyclic batteries, etc.) a 6-month warranty. If a battery has a manufacturing defect, it will be replaced at no cost to the user. ### How long does it take for the battery to arrive? Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc. ## Related links - [Plate search](/buscador-de-baterias-por-matricula) - [HTML version](https://baterias.com/gb/motorcycle-batteries/harley-davidson/bad-boy) - [llms.txt](/llms.txt) ### Other languages - [ES-ES] [https://baterias.com/baterias-de-moto/harley-davidson/bad-boy](https://baterias.com/baterias-de-moto/harley-davidson/bad-boy?format=md) - [EN-GB] [https://baterias.com/gb/motorcycle-batteries/harley-davidson/bad-boy](https://baterias.com/gb/motorcycle-batteries/harley-davidson/bad-boy?format=md) - [PT-PT] [https://baterias.com/pt/baterias-de-motocicleta/harley-davidson/bad-boy](https://baterias.com/pt/baterias-de-motocicleta/harley-davidson/bad-boy?format=md) - [FR-FR] [https://baterias.com/fr/moto-batteries/harley-davidson/bad-boy](https://baterias.com/fr/moto-batteries/harley-davidson/bad-boy?format=md) - [IT-IT] [https://baterias.com/it/batterie-per-motociclette/harley-davidson/bad-boy](https://baterias.com/it/batterie-per-motociclette/harley-davidson/bad-boy?format=md) - [DE-DE] [https://baterias.com/de/motorradbatterien/harley-davidson/bad-boy](https://baterias.com/de/motorradbatterien/harley-davidson/bad-boy?format=md) - [X-DEFAULT] [https://baterias.com/baterias-de-moto/harley-davidson/bad-boy](https://baterias.com/baterias-de-moto/harley-davidson/bad-boy?format=md)