12V 9A AGM Battery
Specifications
| Brand | KRONOBAT |
|---|---|
| Part number | ES9-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 9.0Ah (c20) |
| Technology | AGM |
| Length | 151.00 mm |
| Width | 65.00 mm |
| Height | 100.00 mm |
| Terminal type | F1/F2 |
€26.20
VAT included
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 responsewhen the mains drop, no voltage dip
- Long life under 24/7 chargeoptimised for permanent service
- Compatible with your systemexisting UPS units and alarm control panels
Voltage
12 V
Capacity
9 Ah
Dimensions
151×65×102 mm
Technology
AGM
Stationary battery Kronobat Kronobat 12V 9Ah 9Ah 12V
12VVoltage
9AhCapacity
2.69kgWeight
The 12 V, 9 Ah Kronobat Kronobat 12V 9Ah stationary battery with AGM technology is designed for UPS, alarms, telecoms and emergency lighting. Its 151 × 65 × 100 mm make it the exact replacement for the 9 Ah battery fitted as standard to many UPS, alarm and emergency systems.
- Standard format for UPS and emergency systems.
- Low self-discharge and high reliability.
- Instant response to mains failures.
- AGM: faster recharging and better cycle resistance than a conventional battery.
What the Kronobat Kronobat 12V 9Ah is for
With 9 Ah, the Kronobat Kronobat 12V 9Ah gives your UPS or emergency system the autonomy it needs. Replace all the batteries in the set at once. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.69 kg and F1/F2 terminals.
Dimensions, polarity and mounting
The Kronobat Kronobat 12V 9Ah is made in the 151 × 65 × 100 mm format and weighs 2.69 kg. It uses F1/F2 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
Technology inside the Kronobat Kronobat 12V 9Ah
Within the Kronobat catalogue, the Kronobat 12V 9Ah is the 9 Ah model designed for this application.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Why choose Kronobat batteries
With Kronobat we offer an own-brand alternative without compromising on quality: European manufacturing, original-equipment controls and the direct backing of baterias.com for warranty and advice. All the Kronobat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Manufacturer's warranty
The Kronobat Kronobat 12V 9Ah comes with the manufacturer's official warranty against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.
Care and maintenance
Replace all the batteries in the set at once and avoid environments continuously above 25 °C. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
Shipping, delivery and returns
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
BCOM-KRONOBAT-12V9Ah
Data sheet
- Brand
- Reference
- Kronobat 12V 9Ah
- Voltage (V)
- 12
- Length
- 151.00 mm
- Width
- 65.00 mm
- Height
- 100.00 mm
- Technology
- AGM
- Terminal type
- F1/F2
- Capacity (C20)
- 9.0Ah (c20)
Specific References
- MPN
- ES9-12
Comparison: Kronobat 12V9Ah vs equivalents
The Kronobat 12V9Ah is interchangeable with these equivalent references: ES7-12FR T2 (MK Powered), ES9-12 (MK Powered).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Kronobat
12V9Ah
This battery
|
12V 9Ah | AGM | €26.20 |
MK Powered
ES7-12FR T2
|
12V 7.2Ah | AGM | €46.95 |
MK Powered
ES9-12
|
12V 9Ah | AGM | €56.40 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
How to change the battery
Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.
Step 1. Power off and unplug the device
Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.
Step 2. Locate the battery compartment
Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.
Step 3. Disconnect the negative (−) first
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.
Step 6. Fit the new battery
Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.
Step 7. Connect the positive (+) first
On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.
Step 8. Initial charge before first use
Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.
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 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.
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.
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.
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