Mighty Max Battery 12V 9AH SLA Battery Replacement for SEL HYS1290 Brand Product

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.

My car jump starter uses a sealed lead-Acid battery that had gone dead after many years of use. Rather that throw it away and buy new I decided to refurbish it. This battery was a perfect fit match and most importantly it had the correct Nut & Bolt terminals that are necessary for this device. The battery arrived, safely packaged in protective foam and cardboard box and with terminal protectors to prevent accidental shorting of the terminals. The battery was charged. After installing it it only took a short while to charge up to full level in my device. It was relatively easy to replace it and will give this battery pack a few more years of life. Photo is of the new battery installed in the battery jumper device.

Worked great for a generator replacement battery. Quick ship

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

As advertised and works as it should.

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

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.

Repeat customer. Price is right and they last about 2 years on zero turn mower and 12 volt winches on trailers. Very happy.

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