AGM — absorbed glass mat — holds the electrolyte in a fiberglass separator compressed between the plates. The construction gives AGM blocks their signature virtues: very low internal resistance (hence strong high-rate discharge for UPS duty), no free liquid to spill, and good charge acceptance. In the XD range, AGM technology appears inside the VRLA family, most explicitly in the documented deep cycle 12V 100Ah Gel AGM battery — 29.5 kg, 407 × 174 × 215 mm, three-year warranty, maintenance-free, with an application list spanning UPS, solar, telecom, data centre and more.
Specifying "12V AGM" well means specifying the duty with it. For pure standby — a UPS block that floats for years — AGM is the classic answer and the UPS pages of this site are the route. For daily deep cycling in heat, the gel line is usually the better engineering answer, and our gel vs AGM comparison exists precisely to stop buyers paying for the wrong virtue. Where the duty genuinely mixes both — bad-grid telecom cabinets, hybrid backup — the documented Gel AGM model is the range’s deliberate compromise candidate.
AGM buying checklist
- Duty first: standby, cycling, or honestly mixed?
- Case fit: the Gel AGM block’s 215 mm height suits lower cabinets
- Rate honesty: compare capacities at the same discharge rate
- One model per bank — as with every lead acid string
Is a Gel AGM battery the same as an AGM battery?
The documented model carries a hybrid designation in the gel family. If your tender specifies AGM strictly, tell us — we will match the specification to the correct model or say plainly where the range’s answer differs.
AGM or gel for a home UPS that also runs daily loads?
That mixed duty is the Gel AGM model’s documented brief. Pure standby favours classic AGM selection via the UPS pages.