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Opti-Ups AS850C-S

Batteries for Opti-Ups AS850C-S

Batteries for UPS / UPS · Opti-Ups

Which battery does a Opti-Ups AS850C-S need?

🔧 Battery Expert Advisor

Battery analysis for your Opti-Ups AS850C-S

Quick answer You need an AGM battery of 9 Ah. Our recommendation: MK POWERED ES9-12.

MK POWERED ES9-12
MK POWEREDES9-12
AGM9 Ah151×65×102
€56.40
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Prices and availability updated on 23/10/2026

Based on the batteries we found for your vehicle, our experts help you pick the right one.

📋 What we found

For your Opti-Ups AS850C-S we found 1 compatible battery.

⭐ Our recommendation

Our recommendation

For your Opti-Ups AS850C-S it's the recommended battery: MK POWERED ES9-12. Its specs: AGM technology, 9 Ah capacity, 151×65×102 mm dimensions.

See this battery →
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Verified selection

Order now with express shipping: your product ships on Monday and arrives on Tuesday before 5 PM (Spain mainland and Portugal only).

AGM / EFB batteries

AGM or EFB technology batteries: more charge cycles, faster recovery and a longer life than a conventional battery.

1 product AGM or EFB technology batteries: more charge cycles, faster recovery and a longer life than a conventional battery.
Comparison table of available products
Category Make Reference Capacity Dimensions Technology Price
AGM / EFB batteries MK POWERED ES9-12 9 Ah 151×65×102 mm AGM €56.40 More info

Frequently asked questions

The Opti-Ups AS850C-S uses the battery shown on this page. Check voltage, capacity and dimensions before ordering. If there is no published price, ask for a quote and we reply the same day.
Yes, as long as it has the same voltage, fits in the battery compartment and the Opti-Ups AS850C-S charger is compatible. More capacity (Ah) means more run time; changing the voltage or battery type without adapting the charger can damage the equipment.
Many machines run at 24, 36 or 48 V with several 6, 8 or 12 V batteries connected in series (voltages add up; the Ah capacity is that of one unit). The model page tells you how many units it takes. Always replace the whole set with identical batteries of the same age.
Not advisable. A starter battery delivers a lot of current for a few seconds; a deep-cycle battery has thick plates built to be discharged to 50-80% and recharged every day. In traction, cleaning or mobility equipment a starter battery lasts very few cycles.
Some references are not published in the shop: click "Request a quote" and we reply the same working day with price and lead time. Those with a price can be bought online and ship the same day if you order before 6:00 pm.
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