Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Mighty Max ML5-12 is a sealed lead-acid battery rated 12V and 5Ah, sized as a drop-in replacement for alarm panels and small UPS units that use the Casil CA1240. It is a maintenance-free AGM block with a standard 4.21-inch height and spade terminals, so it fits most existing battery compartments without wiring changes. It suits alarm owners and small backup systems that need a like-for-like swap rather than more capacity. Against premium brands it is a budget option; reviewers report it works fine for alarm and standby duty but is not built for deep cycling or high-drain use.
In stock
Store links may earn us a commission. Price via Klarna.
Lowest price we've seen: $17.99 on Nov 11 at Lowe's. Tracked across 1 store since Nov 11.
Owners mostly use it as a straight swap in alarm panels and small backup units and report it works as expected. Some complain that capacity and longevity fall short of the rating, especially in warm locations.
This is a 12V, 5AH sealed lead-acid (SLA) battery, model ML5-12, from Mighty Max Battery. It is listed as a replacement for the Casil Ca1240 alarm control system and is also categorized as a UPS battery.
The battery uses lead-acid technology and is 4.21 inches tall.
