• Uninterruptible Power Supplies (UPS);
  • Telecommunication;
  • Switch-gear operations;
  • Cellular radio;
  • Computer power supply;
  • Standby power supply;
  • Vacuum cleaner;
  • Photovoltaic.

Introduction for MLG Series

Vanguard VG series is designed for 12 years life. It is especially designed for telecommunication application. The outstanding advantage of VG series battery is that the width of battery is 19’’ and the two terminal battery are in the front . It is very convenient for connecting bus bar and inspect after the batteries are installed in the rack. The alloy of VG series is made through a very available way and also the positive grid is specially designed for long life.

Feature in details


  • Long life design and free of maintenance


Vanguard VG series are long life design batteries and free of maintenance. Normally in the alloy of plate, the percentage of tin is 0,8%. For these batteries, we double the percentage of tin in the alloy. Also we change the percentage the percentage of Ca in this alloy.


  • Valve regulated construction

Vanguard VG series is the AGM (Absorbed Glass Mat) valve regulated (sealed) lead acid rechargeable type of batteries. The electrolyte is suspended in a specially formulated non woven glass mat separator. All the electrolyte is absorbed in this manner and provides a safe non-spillable battery.


  • Gas recombination system

The gasses generated in the normal charge/discharge use of a rechargeable battery are internally recombined during normal operating parameters. In the fact in normal operational use, more than 99% of the gasses generated are recombined.


  • Safety and automatic valve system

If the pressure is over 2-5 psi the safety valve will automatically open and reseal. The promise that there is no any excessive accumulation if gas in the battery.


  • Heavy duty grids

The grids are made by heavy duty lead calcium tin alloy. This provides: the safety margin of performance condition, excellent recovery capacity from deep discharge, extra service life in either cycle or float application, low self-discharge when it is not in working.


  • Float service life of battery

Vanguard VG series batteries is designed for float life of 12 years at 20°C (68°F).


  • Operation in any position

Because the batteries are sealed and all the acid is absorbed in the special separators, these batteries can be operated in both vertical and horizontal position.


  • Wide operation temperature range

The batteries can be used in wide temperature range from -35°C to 45°C.


  • Available in flame retardant ABS material for the battery case V0

The batteries cases can be made by flame retardant material V0. It depends on the requirement of customer.

Technical specification

Model Nom. Voltage (V) Nom. Capacity, C10hr (AH) Dimensions H over Terminal Weight
Length Width Height
(mm) (mm) (mm) (mm) (kg)
VG 12-55 12,00 55,00 227,00 106,00 222,00 222,00 17,50
VG 12-80 12,00 80,00 394,00 109,00 285,00 285,00 31,00
VG 12-85 12,00 85,00 507,00 109,00 238,00 238,00 30,50
VG 12-90 12,00 90,00 394,00 109,00 285,00 285,00 33,00
VG 12-100 12,00 100,00 394,00 109,00 285,00 285,00 35,00
VG 12-105 12,00 105,00 507,00 109,00 238,00 238,00 34,00
VG 12-130 12,00 130,00 551,00 109,00 287,00 287,00 44,50
VG 12-150 12,00 150,00 551,00 109,00 287,00 287,00 49,00