Ritar RL21500 · Stationary UPS battery 2V 1500Ah AGM
Specifications
| Brand | RITAR |
|---|---|
| Part number | RL21500 |
| Voltage (V) | 2 |
| Capacity (C20) | 1500 |
| Capacity (C10) | 1500Ah (c10) |
| Capacity (C5) | 1313Ah (c5) |
| Technology | AGM |
| Length | 355.00 mm |
| Width | 337.00 mm |
Ritar RL21500 2V 1500Ah 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
Where it fits: the Ritar RL21500 is one of our cyclic batteries and belongs to our Ritar batteries.

Stationary battery Ritar RL21500 RL 1,500Ah 2V
Designed for UPS, alarms, telecoms and emergency lighting, the Ritar RL21500 from the RL range offers 1,500 Ah with AGM technology on permanent float charge. Measuring 355 × 337 × 342 mm, it is the direct replacement for UPS, alarm and emergency systems fitted from the factory with a 1,500 Ah battery of this format.
- Low self-discharge and high reliability.
- Standard format for UPS and emergency systems.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Instant response to mains failures.
What the Ritar RL21500 is for
With 1,500 Ah, the Ritar RL21500 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 85 kg and F10(M8) terminals.
Size, terminals and hold-down of the Ritar RL21500
In terms of format, the Ritar RL21500 measures 355 × 337 × 342 mm (length × width × height) and weighs 85 kg. It uses F10(M8) terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
Ritar: the maker behind the RL21500
With more than twenty years making sealed lead batteries, Ritar offers general-purpose, long-life, high-rate and front-terminal ranges for every stationary application. We guarantee that every Ritar arrives new, charged and with the manufacturer's full warranty.
The Ritar RL21500: RL range and AGM technology
The RL21500 is part of the Ritar RL range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
How to make it last longer
Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery. Replace all the batteries in the set at once and avoid environments continuously above 25 °C.
Warranty and coverage
The Ritar RL21500 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.
Delivery times and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
Data sheet
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BrandRITAR
-
ReferenceRL21500
-
ModelRITAR RL
-
Voltage (V)2
-
Length355.00 mm
-
Width337.00 mm
-
Height342.00 mm
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Weight85 Kgs
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TechnologyAGM
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Terminal typeF10(M8)
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Capacity (C20)1500
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Capacity (C10)1500Ah (c10)
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Capacity (C5)1313Ah (c5)
Specific References
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MPNRL21500
Recommended accessories
Frequently asked questions
Is the Ritar RL21500 an AGM battery and what are the benefits of AGM?
Yes. AGM (Absorbent Glass Mat) technology, 1500 Ah and 2 V: sealed lead-acid, with the electrolyte held in glass fibre. It tolerates heat better and handles more cycles than a conventional battery.
What are the dimensions of the Ritar RL21500 battery?
Before buying, measure the space in your device: one extra millimetre can stop the hold-down clamp from closing. The Ritar RL21500 takes up 355×337×342 mm (length, width and height, terminals included).
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