Mighty Max Battery 12V 9AH Nut and Bolt SLA Battery Replacement for SEL HYS1290

Good quality, prompt service, exact fit, good packaging, worked as it should..

This battery is exactly what I have been looking for. It's 12 VDC, 9 Ah, SLA, and it has M5/#10 posts. My 1500 VA APC BACK-UPS batteries went bad after about four years, so I decided to get these instead of an overpriced battery pack. Of course, these won't fit inside perfectly like what was intended to be used with it, so I put them under my desk. I connected it to my UPS with 8 AWG wires, and I used M5 hole to spade terminal adapters since the UPS itself uses female spades to connect the batteries. The originals were 9 Ah, so I got the same in order to keep the time remaining accurate and ensure that it would all work as expected. I no longer am getting error codes or random instantaneous battery levels dropping to zero then going back up (and the UPS not being able to work off of battery power), so I'm happy. I also checked the UL file for the batteries, and it's legit. Get this battery if you want a great price on a lower capacity SLA battery that doesn't force you to use spade terminals.

Fit great in my old jump pack and cheaper than a new unit. Works well for starting my diesel tractor on the coldest of northeast winters when the main battery isnt up for the task.

Just installed today in portable auto jump pack, fit perfectly! Charged up just fine!

Use these batteries for UPS, perfect fit works well

This was a perfect match to my old battery in physical size and voltage terminal connections.

Battery completely died after 2 years of just sitting there with proper interval changes.

Works great, would recommend

Arrivé en bon état et bien emballée. Fonctionne bien et s’est bien adapté au remplacement de l’ancienne.

Livraison Rapide Fonctionne parfaitement, bon format pour remplacer la battery dans un PowerBox Eliminator de 120W 600A. Merci beaucoup

Works well and meets the intended job of replacing my Car Jump starter

Extremely tiny bolt holes, likely won't fit the bolts you were using, and the bolts it comes with are so tiny the head slips right through the wire plate hole. And being they are so close together good luck not arcing out, when installing especially since they made it a philips head screwdriver bolt and it is an uncommon wrench size. Had to drill out the holes to fit a real sized bolt. Aside from that disaster, the battery functions fine in my HUSTLER RAPTOR XD 60 ZERO TURN MOWER. But be prepared to have to do some modifications