# 12V 9A AGM Battery ![12V 9A AGM Battery](https://baterias.com/3226-home_default/battery-12v-9ah-agm.jpg) > Battery Kronobat 9Ah 12V ✅ Battery for UPS. Kronobat Batteries 【Cheap Online Batteries】 **Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) → [KRONOBAT](https://baterias.com/gb/kronobat) - **Canonical URL**: https://baterias.com/gb/battery-12v-9ah-agm - **Language**: en-GB - **Brand**: KRONOBAT - **Reference**: BCOM-KRONOBAT-12V9Ah - **MPN**: ES9-12 - **Price**: 25,56 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Reference | Kronobat 12 V 9 Ah | | Voltaje | 12 V | | Largo | 151 mm | | Ancho | 65 mm | | Alto | 100 mm | | Tecnología | AGM | | Terminal | F1/F2 | | Capacidad C20 (Ah) | 9 Ah (c20) | ## Quick description **Kronobat 12V9Ah 12V 9Ah** is a stationary battery for backup power systems: UPS, alarms, telecom and emergency lighting. Long float-life under permanent charge and instant response to mains outages with no noticeable voltage drop. ### Why this stationary battery? - **Instant response** when the mains drop, no voltage dip - **Long life under 24/7 charge** optimised for permanent service - **Compatible with your system** existing UPS units and alarm control panels 🔌 Voltage 12 V ⚡ Capacity 9 Ah C20 📏 Dimensions 151×65×102 mm ⚙️ Technology AGM ## Description ## Battery Kronobat 12V 9Ah The Battery KRONOBAT ES9-12 9Ah 12V AGM DEEP CYCLE belongs to the AGM Deep Cycle de Kronobat batteries range AGM Deep Cylce batteries are the best option for electric wheelchairs and mobility scooters since they provide durability and high energy, in addition to being environmentally respectful. ### Ideal for: - Mobility vehicles - Marina / RV (recreational vehicles) - Wind power - Solar systems ### Battery advantages and characteristics KRONOBAT ES9-12 9Ah 12V - AGM technology - Free of mantenimient - Long duration for small download cycles - Designed for deep cycle applications ### How to find the right battery for your vehicle? We know that you will have doubts about which battery is better for your vehicle or device, there is a lot of variety of products and brands to chooseLooking for batteries for standard vehicles, batteries for high-end cars with Start-Stop systems or boat batteries, Kronobat batteries are an excellent option. Kronobat products have the same characteristics of reliability, resistance, manufacturing materials and power as the high range of first brands but at much lower prices.Not only for the price of the battery, but because the Kronobat batteries as many with the same benefits and characteristics as the first brand batteries such as Varta, Exide etc. On our website you will find a complete and varied catalog to meet the electrical demands of any type vehicle, if you do not find the battery that needs or have doubts about which battery, do not hesitate to contact us. **We inform you that, due to the high demand for this type of products, if there was a case that we do not have due to lack of stock of the Kronobat battery you have acquired, a battery will be sent with the same benefits even if it is from anotherWhite brand.In case of not having a similar white brand battery, it will be sent first brand.** ## Frequently asked questions ### Is the Kronobat ES9-12 an AGM battery and what are the benefits of AGM? Yes. The ES9-12 from Kronobat uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions. ### How do I know if the ES9-12 model fits my device? Three ways: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team for the ES9-12; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET). ### How do I change this battery step by step? In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What warranty does the Kronobat ES9-12 battery have? The official manufacturer warranty is 2 years and covers manufacturing defects. It applies to defects such as damaged cells, internal short-circuits or abnormal capacity loss. Wear from misuse (prolonged overcharging, wrong charger or faulty alternator) is not covered. On confirmed defect after technical inspection, we replace the ES9-12 model at no cost. ### How long does Kronobat ES9-12 delivery take? In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships. ### How do I return the ES9-12 model if it doesn't fit? Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period. ### How much does the Kronobat ES9-12 battery cost? The current price at baterias.com is 25,56 € (VAT included; 21,12 € excl. VAT), updated every 24 hours. The applicable VAT may vary with the destination country and is confirmed in the cart. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). ### Where can I buy the Kronobat ES9-12 battery? At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point. ### How long does the Kronobat ES9-12 battery last? Expected lifespan of the Kronobat ES9-12 is 5 to 8 years in mild-climate device use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured. ### What are the dimensions of the Kronobat ES9-12 battery? Dimensions (length × width × height) are 151×65×102 mm — also written as 151x65x102 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### How many kilos does this battery weigh? It weighs 2,7 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre). ### How many amps does the Kronobat ES9-12 battery have? Nominal capacity 9 Ah[?cca: and [cold-cranking amps A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer. ### What are the equivalents of the ES9-12 model? Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level. ### Which is better: Kronobat ES9-12 or an alternative from another brand? This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section. ### What do users say about the Kronobat ES9-12 battery? The average rating of the Kronobat ES9-12 on baterias.com is 4.84/5 from 17 verified customer reviews. The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.4/5 from 10,948+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped devices that need OBD registration after fitting. ## Reviews - **Average rating**: 4.84 / 5 (17 reviews) ## 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 · 2026-08-02*