# High-rate UPS batteries > Over 20 high-rate UPS batteries from Ritar HR, Genesis EP and Fulbat, in AGM and TPPL from 5 to 200 Ah. Buy online with the final price including VAT. **Category:** [Beginning](https://bateriasonline.es/en/) → [Battery types: starter, deep cycle, traction and stationary](https://bateriasonline.es/en/batteries) → [Stationary VRLA batteries: AGM and GEL](https://bateriasonline.es/en/stationary-batteries) → [UPS batteries](https://bateriasonline.es/en/ups-batteries) - **Canonical URL**: https://bateriasonline.es/en/high-rate-ups-batteries - **Language**: en ## Description High-rate UPS batteries that deliver a lot of power in a few minutes, such as Ritar HR12-80W or HR12-96W. When a UPS has to carry a heavy load for only a few minutes, the Ah rating stops being the useful figure. **High-rate** batteries are VRLA AGM blocks with plates and internal links built for very fast discharge, and they are chosen by the **watts per cell** they deliver over 5, 10 or 15 minutes. This section carries 12 V blocks from the RITAR HR series. ## Why watts matter more than amp-hours here A battery's Ah figure comes from a slow discharge, typically over 20 hours. In a UPS of any size the discharge lasts minutes, and at that rate a conventional block delivers far fewer Ah than its label suggests. High-rate datasheets therefore include **constant-power tables (W/cell)** for several durations and end voltages. Some series even put that number in the model name. ## Quick sizing method - Start from the real load in watts and divide it by inverter efficiency (around 0.9). - Divide that figure by the total number of cells in the string: every 12 V block has 6. - Look up the manufacturer's table for the model that delivers those W/cell for the runtime you need. Rough example: a 3,600 W load at 0.9 efficiency asks 4,000 W of the batteries; with four 12 V blocks (24 cells) that is about 167 W per cell. Add headroom for ageing and temperature. ## Installation and care These blocks nearly always sit in long series strings, so every unit should share model and batch, with links torqued to spec and no temperature gap between shelves. A loose link under fast discharge creates heat and voltage drop that the UPS reads as a flat battery. Browse the [RITAR](https://bateriasonline.es/en/ritar-batteries) range, compare with [standard UPS batteries](https://bateriasonline.es/en/ups-batteries) or go back to [stationary batteries](https://bateriasonline.es/en/stationary-batteries). ## High-rate battery FAQ ### Can a standard AGM block of the same size replace a high-rate one? It will fit and connect, but real runtime will be shorter and the UPS may cut out early under heavy load. Always compare the W/cell tables. ### Are they suitable for daily cycling? Not really. They are designed for float service with short, infrequent discharges; daily cycling calls for a different technology. ### Which end voltage should I use in the calculation? Whatever the UPS is set to, usually between 1.60 and 1.75 V per cell. A lower cut-off extracts more energy but stresses the battery more. ## Choose by brand The same high-rate UPS batteries, filtered by manufacturer. Each brand has its own page with all its references and a buying guide. - [Ritar batteries](https://bateriasonline.es/en/ritar-batteries) (13) - [Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries) (3) ## Products in this category | Product | Brand | Price | |---|---|---| | [Ritar HR12-104W · High-rate UPS battery 12V 26Ah](https://bateriasonline.es/en/ritar-hr12-104w) | Ritar | 136,32 € | | [Ritar HR12-125W · High-rate UPS battery 12V 33Ah](https://bateriasonline.es/en/ritar-hr12-125w) | Ritar | 133,77 € | | [Ritar HR12-150W · High-rate UPS battery 12V 40Ah](https://bateriasonline.es/en/ritar-hr12-150w) | Ritar | 167,09 € | | [Ritar HR12-20BW · High-rate UPS battery 12V 5Ah](https://bateriasonline.es/en/ritar-hr12-20bw) | Ritar | 50,18 € | | [Ritar HR12-20W · High-rate UPS battery 12V 5Ah](https://bateriasonline.es/en/ritar-hr12-20w) | Ritar | 38,81 € | | [Ritar HR12-28W · High-rate UPS battery 12V 7Ah](https://bateriasonline.es/en/ritar-hr12-28w) | Ritar | 44,39 € | | [Ritar HR12-32W · High-rate UPS battery 12V 8Ah](https://bateriasonline.es/en/ritar-hr12-32w) | Ritar | 47,97 € | | [Ritar HR12-36W · High-rate UPS battery 12V 9Ah](https://bateriasonline.es/en/ritar-hr12-36w) | Ritar | 48,71 € | | [Ritar HR12-48WB · High-rate UPS battery 12V 12Ah](https://bateriasonline.es/en/ritar-hr12-48wb) | Ritar | 59,68 € | | [Ritar HR12-50W · High-rate UPS battery 12V 14Ah](https://bateriasonline.es/en/ritar-hr12-50w) | Ritar | 66,54 € | | [Ritar HR12-70W · High-rate UPS battery 12V 18Ah](https://bateriasonline.es/en/ritar-hr12-70w) | Ritar | 78,11 € | | [Ritar HR12-80W · High-rate UPS battery 12V 20Ah](https://bateriasonline.es/en/ritar-hr12-80w) | Ritar | 98,59 € | | [Ritar HR12-96W · High-rate UPS battery 12V 24Ah](https://bateriasonline.es/en/ritar-hr12-96w) | Ritar | 131,03 € | | [Genesis G13EP · High-rate UPS battery 12V 13Ah](https://bateriasonline.es/en/genesis-g13ep) | Genesis | 166,11 € | | [Genesis G16EP · High-rate UPS battery 12V 16Ah](https://bateriasonline.es/en/genesis-g16ep) | Genesis | 132,59 € | --- *bateriasonline.es — Batteries and accessories · 2026-11-10*