Low maintenance

Basic featurestractie low maintenance

  • Special design and optimized alloys minimizes water consumption
  • Minimal maintenance costs due to the longer watering interval
  • Extended watering intervals (up to 13 weeks)
  • Best solution to optimize customer’s service cost
  • Available in 125Ah & 155Ah Plates

Minimum maintenance costs

  • Water refilling represents a significant part of the overall time consumed in battery maintenance.
  • The watering interval depends mainly on two factors:

Acid reserve volume of the battery

  • Special design

Water loss per cycle

  • Water loss per cycle is the result of the water decomposition (electrolysis) and this is directly proportional to the overcharge factor.


Warehouses & Logistic centers with large forklift

… where maintenance and energy cost are really high (high % of the overall forklift operation and maintenance budget)

Rental or Leasing contracts of large forklift fleets

…where maintenance is part of the service agreement/contract

Design & specificationLM Design Specifications

  • Same plate height with PzS, tubular positive plate design, same capacity
  • Reduced prism height creates larger electrolyte reserve thus increases the watering interval
  • Low antimony (Sb) grids, less antimony “poisoning”, reduced water decomposition
  • Use of good quality gauntlet and special NAM formula minimizes mass shedding
  • Available currently for 125 and 155 Ah plate heights

Cell design

Cost effective solution

Comparison parameters Standard systems Low maintenance
Battery Same level Little higher initial cost
Charger HF 50 Hz usually Standard, higher cost, faster and better charging
Aqua filling Optional Optional
Electrolyte level indicator Optional Standard
Service cost High Low
Energy consumption High Energy saving
Operations Efficiency Standard Higher

Watering intervals

  • The topping up intervals are based on 80%DoD – 5 cycles per week
  • The following charging factors are considered
    • 1.2 for the conventional (50 Hz) charger
    • 1.10 to 1.12 for the HF pulse charger
    • 1.07 for the HF charger using the Air Lift system
Watering intervals

Available Versions

Comparison Parameters Typical System Low Maintenance 4 Low maintenance 8 Low maintenance 13
Watering inverval 2 weeks 4 weeks 8 weeks 13 weeks
Charger 50 Hz 50 Hz HF HF + Airlift
Charging factor 1,2 1,2 1,11 1,07
Electrolyte level indicator Yes Yes Yes
Aqua Filling Optional Optional Optional Optional
Airlift Yes

Charging curve

  • The pulse cycle is specially designed to achieve optimum acid mixing and charging effects without excessive stress on the battery.
  • The number of pulse cycles varies automatically according to the battery needs. Number of pulses is less when previous depth of discharge is low. No unnecessary charging – No water loss for nothing.
  • The acid mixing precedes the overcharging phase which now becomes more effective and shorter.
  • The du/dt criteria for the end of charge, guaranties the complete recharge of the battery with the minimum overcharging every time with minimal water loss.
Low maintenance charging curve
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