MK Gel battery M40-12SLDG 12V 40Ah

The MK M40-12SLDG is an ultra-modern and absolutely maintenance-free deep-cycle gel battery, designed to meet the highest demands for cycle durability, safety and longevity in demanding daily use. With a nominal voltage of 12 V and a capacity of 40 Ah (C100), this accumulator provides outstanding performance in demanding cyclic operation. The advanced gel technology and robust construction make it the first choice for rehabilitation technology, solar systems and marine applications.

Highlights at a glance

• Superior gel technology: The electrolyte bound in gel guarantees maximum cycle durability and a very long service life.
• Genuine deep-cycle performance: Developed for deep and regular discharge cycles without loss of capacity.
• Absolutely maintenance-free and leak-proof: Sealed construction enables installation in any position and indoors.
• Maximum operational safety: Extremely robust and reliable, ideal for daily, intensive use.
• Versatile in use: Perfect for electric wheelchairs, solar systems, cleaning machines and boats.

Maximum performance for demanding cyclic applications

The MK M40-12SLDG was specifically developed for tough, cyclic day-to-day use. Its main area of use is in demanding rehabilitation technology, where it supplies high-performance electric wheelchairs and scooters with long-lasting and reliable energy. As a storage battery in stand-alone solar systems and in off-grid power supply, it proves its reliability. It is also an excellent energy source for industrial cleaning machines, lifting platforms and marine applications.

Advanced and proven gel technology

Unlike conventional wet or AGM batteries, the electrolyte in a gel battery is thickened in a silica gel. This completely prevents leakage and eliminates the need to top up with water. Gel technology offers excellent resistance to vibration, very low self-discharge and, above all, outstanding tolerance of deep discharges. This makes it the safest and most durable choice for intensive supply applications.

Longevity and economy in focus

The MK gel battery is an investment in longevity and operational safety. Its ability to withstand hundreds of deep charge and discharge cycles reduces the need for premature replacement and thus significantly lowers your devices' total operating costs. The high-quality workmanship and use of high-purity materials ensure constant power delivery and reliable operation over its entire, long service life.
 

Features

FAQs about the MK Gel Battery M40-12SLDG

What does "Deep Cycle" mean?

"Deep Cycle" means that the battery is designed to regularly deliver a large part of its stored energy (deep discharge) and then be fully recharged again without rapidly losing capacity. This is crucial for supply applications, as opposed to starter batteries, which only deliver high currents for a short period.

What is the main difference between gel and AGM batteries?

Both are maintenance-free nonwoven batteries. In gel batteries, however, the electrolyte is thickened to a gel consistency, while in AGM batteries it is bound in a liquid form in a glass mat. Gel batteries generally offer even higher cycle durability and better tolerance to deep discharges, making them the premium solution for demanding supply applications.

Which charger do I need for this gel battery?

You need a modern, microprocessor-controlled charger that has a special charging profile for gel batteries. The charging voltage for gel batteries is generally somewhat lower than for AGM or wet batteries. Using the wrong charger can significantly reduce the battery's lifespan.

Can I connect two of these batteries in series to get 24V?

Yes, this is a very common application, especially in electric vehicles, wheelchairs or for 24V solar systems. To ensure optimal performance and service life, always use two identical batteries (same model, same capacity), ideally from the same production batch and with the same state of charge.

How should this lead-acid battery be disposed of?

Lead-acid batteries contain environmentally harmful substances and must not be disposed of in household waste. You can return your old battery free of charge to any retailer who sells new batteries, or to municipal recycling centres, to ensure proper recycling.