# VARTA PowerSports AGM Batteries > VARTA PowerSports AGM motorcycle batteries: sealed, maintenance-free, and vibration-resistant. Find your equivalent JIS reference. **Category:** [Start](https://baterias.com/gb/beginning) → [Batteries](https://baterias.com/gb/batteries) → [VARTA batteries](https://baterias.com/gb/batteries-varta) - **Canonical URL**: https://baterias.com/gb/batteries-varta-powersports-agm - **Language**: en-GB ## Description The PowerSports AGM range covers VARTA sealed motorcycle batteries, ready to install and maintenance-free. ## Technology The electrolyte is absorbed into a glass fiber separator, so the battery does not leak even when tilted and does not require water topping. For a motorcycle this is crucial: the compartment is usually in a forced position, subjected to constant vibration and high temperatures due to the proximity of the engine. ## Applications - Street and trail motorcycles - Scooters of all displacements - Quads and light off-road vehicles - Replacement of conventional free acid batteries ## The range in figures References 24 Capacity 2 – 30 Ah Cold cranking 30 – 450 A (EN) Voltage 12 V Technology AGM ## How to choose The JIS reference that appears on the label (YTX12-BS, YTZ10S and similar) determines compatibility: it sets the dimensions, the position of the terminals, and the capacity. Find it on your current battery and locate the equivalent in this range. ## Naming and equivalences PowerSports AGM keeps its name. It is the standard sealed motorcycle battery of VARTA; above it is PowerSports AGM Active, with higher cold cranking amps, and below it PowerSports SLI Freshpack, of free acid. ## Frequently asked questions ### What does the YTX or YTZ reference on my motorcycle battery mean? It is the JIS standard code. It defines the dimensions, capacity and position of the terminals, and it is what determines compatibility: two batteries with the same JIS code are interchangeable. ### Does a motorcycle AGM battery require maintenance? No. The electrolyte is absorbed in a glass fiber separator, so there is no need to refill water or check levels. ### Can it be mounted tilted? Yes. Since it does not have liquid electrolyte, it does not spill, which is important in motorcycles because the housing is usually in a forced position. ### How long does a motorcycle battery last? It depends a lot on usage: short trips and months of inactivity punish it more than kilometers. Keeping it charged during long stops is what extends its life the most. ## VARTA Powersports AGM: the sealed range for mid-to-large motorcycles The **Varta AGM motorcycle battery** Powersports uses VRLA (valve-regulated) technology, making it fully sealed, maintenance-free and safe to install at any angle without electrolyte leaks. It's the direct factory replacement on most European and Japanese motorcycles built over the last two decades, from the urban scooter to the large-capacity sport-tourer. ### Models and application by motorcycle type - **YTX5L-BS** (4 Ah / 80 A): 50-125cc scooter. - **YTX9-BS** (8 Ah / 135 A): 250-500cc naked. - **YTX12-BS** (10 Ah / 180 A): 600-900cc naked, mid-size sport. - **YTX14-BS** (12 Ah / 200 A): 1000cc sport-tourer, BMW R. - **YTX20L-BS** (18 Ah / 270 A): cruiser, Harley, jet-ski. ### How to choose your AGM Powersports battery If your bike is a recent premium model (BMW R, Ducati, KTM Adventure), consider the **AGM Active** line, factory-activated; for a big Harley-Davidson or a large-capacity jet-ski, the **AGM High Performance** line delivers more cranking current. Before buying, always check compatibility with your model on our [motorcycle battery comparison tool](/gb/comparator), checking capacity (Ah), CCA and polarity. ## Frequently asked questions about VARTA Powersports AGM ### **What does it mean for a battery to be AGM?** AGM (Absorbent Glass Mat) is a sealed VRLA battery that holds the electrolyte in glass fibre matting; it needs no maintenance or water top-up, and can be installed at any angle without leaking. ### **Is it compatible with the conventional battery in my stock motorcycle?** Yes: on the vast majority of models AGM is a direct replacement in size and voltage. Just match the code (e.g. YTX12-BS) and the original polarity. ### **What's the difference with AGM Active or AGM High Performance?** AGM Active comes factory-activated and is aimed at premium models; AGM High Performance delivers more CCA for big Harleys and jet-skis. This standard AGM range covers the rest of naked, sport and scooter bikes. ### **Does an AGM battery need maintenance?** No. Being sealed (VRLA) there's no electrolyte level to check or top up over its whole service life; just keep it charged if the bike sits unused for long periods. Catalogue curated by our technical team. **11,063 Trustpilot reviews · 4.5/5**. 24h mainland delivery, free 14-day returns. ## Products in this category | Product | Brand | Price | |---|---|---| | [Motorcycle battery Varta YTX14-BS (512014010) 12V 12Ah 200A AGM](https://baterias.com/gb/battery-varta-moto-12v-12ah-ytx14-4-ytx14-bs-512014010) | VARTA | 36,30 € | | [Motorcycle battery Varta YTX12-BS (510012009) 12V 10Ah 150A AGM](https://baterias.com/gb/battery-varta-moto-12v-10ah-ytx12-4-ytx12-bs-510012009) | VARTA | 29,34 € | | [Motorcycle battery Varta YTX9-BS (508012008) 12V 8Ah 135A AGM](https://baterias.com/gb/battery-varta-moto-12v-8ah-ytx9-4-ytx9-bs-508012008) | VARTA | 29,59 € | | [Motorcycle battery Varta YTX7L-BS (506014005) 12V 6Ah 100A AGM](https://baterias.com/gb/battery-varta-moto-12v-6ah-ytx7l-4-ytx7l-bs-506014005) | VARTA | 26,77 € | | [Motorcycle battery Varta YTX20L-BS (518901026) 12V 18Ah 250A AGM](https://baterias.com/gb/battery-varta-moto-12v-18ah-ytx20l-4-ytx20l-bs-518901026) | VARTA | 52,97 € | | [Motorcycle battery Varta TTZ14S-BS (511902023) 12V 11Ah 230A AGM](https://baterias.com/gb/battery-varta-motorcycle-12v-11ah-ytz14s-4-511902023) | VARTA | 46,63 € | | [Motorcycle battery Varta YT12A-BS (511901014) 12V 11Ah 160A AGM](https://baterias.com/gb/battery-varta-moto-12v-11ah-yt12a-4-yt12a-bs-511901014) | VARTA | 42,54 € | | [Motorcycle battery Varta YTX5L-BS (504012003) 12V 4Ah 80A AGM](https://baterias.com/gb/battery-varta-moto-12v-4ah-ytx5l-4-ytx5l-bs-504012003) | VARTA | 21,63 € | | [Motorcycle battery Varta YTX7A-BS (506015005) 12V 6Ah 105A AGM](https://baterias.com/gb/battery-varta-moto-12v-6ah-ytx7a-4-ytx7a-bs-506015005) | VARTA | 32,63 € | | [Motorcycle battery Varta YTX16-4-1 (514901022) 12V 14Ah 210A AGM](https://baterias.com/gb/battery-varta-moto-12v-14ah-ytx16-4-1-ytx16-bs-1-514901022) | VARTA | 47,46 € | | [Motorcycle battery Varta TTZ10S-BS (508901015) 12V 8Ah 150A AGM](https://baterias.com/gb/battery-varta-motorcycle-12v-8ah-ytz10s-4-508901015) | VARTA | 38,42 € | | [Motorcycle battery Varta YT12B-BS (512901019) 12V 12Ah 215A AGM](https://baterias.com/gb/battery-varta-motorcycle-12v-12ah-yt12b-4-512901019) | VARTA | 66,79 € | | [Motorcycle battery Varta YT14B-BS 12V 13Ah 190A AGM](https://baterias.com/gb/battery-varta-motorcycle-12v-13ah-yt14b-4-512903013) | VARTA | 47,91 € | | [Motorcycle battery Varta YT4L-BS (503014003) 12V 3Ah 40A AGM](https://baterias.com/gb/battery-varta-moto-12v-3ah-yt4l-4-yt4l-bs-503014003) | VARTA | 20,54 € | | [Motorcycle battery Varta TTZ7S-BS (507902011) 12V 5Ah 120A AGM](https://baterias.com/gb/battery-varta-moto-12v-5ah-ttz7s-4-ttz7s-bs-507902011) | VARTA | 27,63 € | ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-08-10*