Skip to main content Skip to search Skip to main navigation
Menu

VISION lead-acid battery 6FM120DX with 12V and 120Ah

Description

Product information

The Vision 6FM120DX is a cycle-resistant, valve-regulated lead-acid battery (VRLA) with 12 volts nominal voltage and 120 ampere hours capacity. It is specially designed for demanding applications with recurring charging and discharging cycles. Equipped with the AGM technology (Absorbent Glass Mat), this battery offers a reliable, leak-proof and durable power supply. It is the ideal solution for systems that require high cycle stability and deep discharges, and is ideal for both cyclic and standby operation.

Highlights at a glance

  • Cycle-resistant: Designed for a high number of charge and discharge cycles, significantly extending the life compared to conventional VRLA batteries.
  • High capacity: 120 Ah at 12 V for a long-lasting and stable power supply.
  • Maintenance-free: Thanks to the leak-proof AGM technology.
  • Low self-discharge: Only approx. 3% capacity loss per month at 20°C, which allows long-term storage.
  • Flexible installation: Operation is possible in different positions, except for permanent overhead mounting.
  • Durable: A service life of up to 10 years in design life.

High performance for cyclic applications

The 6FM120DX reliably delivers power in recurring discharge cycles. With a capacity of 120 Ah at a 10-hour discharge, this battery is an excellent choice for mobile applications and systems with high energy requirements. Its special construction, which utilises lead calcium tin alloys, enables high cycle stability and excellent recovery after deep discharge.

Robust technology for demanding environments

Thanks to the VRLA technology with AGM system, the 6FM120DX is absolutely maintenance-free and leak-proof. The electrolyte is securely bound in a glass fibre mat, which enables safe handling and operation in any position. The battery features self-closing low-pressure relief valves that ensure pressure equalisation within the cells. The case is made of robust ABS plastic, which is optionally also available in a flame-retardant version (UL94:V0). The low self-discharge rate of about 3% per month allows long-term storage while maintaining high readiness for use.


Features
 
ModelVision 6FM120DX
Battery typeVRLA AGM
Nominal voltage (V)12
Capacity (Ah)120 (at 10h rate)
Max. discharge current950 A (for 5s)
Charging voltage (float charge)13.6 V to 13.8 V
Charging voltage (cyclic operation)14.4 V to 14.7 V
Operating temperature (°C)Charging: -10 ~ 60 / Discharging: -20 ~ 60
Service lifeup to 10 years (as per design life)
Dimensions (L/W/H, mm)410 x 176 x 227
Weight (kg)38.0
ConnectionM8 screw terminal
CertificationsISO9001, ISO14001, UL
 

FAQs about the VISION 6FM120DX Lead Battery 

For which applications is the 6FM120DX best suited?

This battery was specially developed for cyclic applications where the battery is regularly discharged and recharged. It is ideal as a main power source for electric vehicles such as wheelchairs, cleaning machines, golf caddies and for use in solar systems, telecommunications systems, UPS systems and medical devices.

What does "cycle-resistant" mean?

A cycle-resistant battery is specially designed to withstand a high number of charge and discharge cycles without significantly losing its capacity or lifespan. This distinguishes it from conventional lead-acid batteries, which are designed more for standby operation.

How do I charge the battery correctly?

We recommend using a charger that is designed for AGM batteries with a capacity of 120 Ah. Pay attention to the charging voltages recommended by the manufacturer: for buffer charging (float mode) 13.6 V to 13.8 V and for cyclic charging (boost mode) 14.4 V to 14.7 V. A charging current higher than 36 A can shorten the battery's lifespan.

How long does the 6FM120DX battery last?

The expected lifespan of the battery is up to 10 years at 20°C in design life. However, the actual service life depends heavily on individual operating conditions, depth of discharge, and ambient temperature. For example, with 50% depth of discharge, more than 650 cycles can be achieved.



 

Properties

Capacity: 120Ah
Tension: 12V

Documents 1

Reviews 0

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


Skip product gallery

Customers also bought

YUANP65/12I
Yuasa NP65-12I lead-acid battery 12V 65Ah - VdS-certified, maintenance-free and powerful

The Yuasa NP65-12I is an industrial VRLA lead-acid battery with a nominal voltage of 12 V and a high capacity of 65 Ah (20h). Developed for demanding continuous use in safety-critical applications, it impresses with reliable performance, long service life, maintenance-free operation, and VdS certification.Highlights at a glanceHigh capacity: 65 Ah (20h) / 60.5 Ah (10h) at 12 V for power-intensive systemsVdS-certified: Tested safety according to VdS-No. G 183008Maintenance-free: AGM technology with gas recombination (> 99 %)Maximum current output: Up to 800 A (1 second) / 500 A (1 minute)Stable connections: M6 female/bolt connection with 4.76 Nm torqueLong service life: Operating life up to 5 years (EUROBAT: Standard Commercial)Ideal for safety-critical and industrial applicationsWith its high energy density and durable design, the NP65-12I is ideal for systems with constant energy requirements and short-term high current demands. It is ideal for UPS systems, fire and burglar alarm systems, emergency lighting systems, telecommunications, and PV backup solutions. It stands out for its high reliability and industrial suitability.Robust design & flexible installationThanks to VRLA (Valve Regulated Lead Acid) technology, the battery is completely maintenance-free and can be operated in any position except upside down. The housing is made of impact-resistant ABS plastic (UL94:HB). The integrated safety valves ensure controlled pressure equalisation within the cells. The self-discharge is only approx. 3 % per month at 20 °C, which enables longer storage without loss of performance.Technical data at a glance  ModelYuasa NP65-12I Battery typeVRLA AGM (maintenance-free) Nominal voltage (V)12 Capacity (Ah)65 (at 20h rate) Maximum discharge current650A (for 5 seconds) Charging voltage (trickle charge)13.65V (±1%) Charging voltage (cycle operation)14.7V (±3%) Operating temperature (°C)-15 ~ 50 Storage temperature (°C)-20 ~ 50 Service lifeUp to 5 years (according to Yuasa design) Dimensions (L/W/H, mm)350 x 166 x 175 Weight (kg)23 ConnectionM6 thread CertificationsIEC 60896-21+22, VdS, UL  FAQ about the Yuasa NP65-12I batteryIs the NP65.12I battery maintenance-free?Yes, thanks to AGM technology, the battery is completely maintenance-free and gas-tight. There is no need to refill with water.What is the battery's service life?The NP65-12I achieves a typical life of up to 5 years at an ambient temperature of 20 °C.How safe is the battery in operation?The battery features integrated low-pressure relief valves, is protected against overpressure, and meets high safety standards (including VdS and UL certification).Can the battery be operated in any position?Yes, except for permanent operation upside down, flexible installation in any orientation is possible.How long is the service life in float and cycling operation?According to EUROBAT classification, the expected standby life is 3 to 5 years. In cyclic operation, over 1,000 charge cycles are possible depending on the depth of discharge.Does the battery regenerate after deep discharge?Yes, thanks to its AGM design and lead-calcium grids, the NP65‑12I has very good deep discharge recovery, provided it is recharged promptly.