Dockstocker lifts typically use 24V or 48V lead-acid or lithium-ion battery systems, with capacities ranging from 240Ah to 350Ah. Common configurations include HAWKER’s 48V 5PzB350 cells and 24V 3PZS270 batteries designed for consistent discharge cycles. Batteries must match the lift’s voltage requirements and physical tray dimensions. For electric models like BR25S stackers, 48V 350Ah LiFePO4 packs provide extended runtime and faster charging compared to traditional lead-acid options. Always verify terminal compatibility and tray clearance before selecting replacements.
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What voltage options exist for Dockstocker lifts?
Dockstocker lifts primarily operate on 24V or 48V systems, with 24V used for light-duty models and 48V for heavy lifting. The HAWKER 5PzB350 (48V/350Ah) and 3PZS270 (24V/270Ah) are industry-standard configurations. Higher voltage systems reduce current draw, improving motor efficiency and battery lifespan. Always check the controller’s input voltage range to prevent compatibility issues.
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Dockstocker lifts require batteries with stable voltage output during peak loads. A 48V system using six 8V lead-acid cells in series provides optimal power density for continuous lifting operations. For lithium alternatives, 15-cell LiFePO4 configurations (48V nominal) deliver 30% longer cycle life than lead-acid. Pro Tip: Use digital voltmeters monthly to detect cell imbalance early—voltage deviations exceeding 0.5V per cell indicate pending failure. Consider how hydraulic systems react: a 48V battery maintains pump pressure better during 3-hour shifts versus 24V packs that sag under load.
How do lead-acid and lithium-ion batteries compare?
Lead-acid batteries offer lower upfront costs but require frequent watering, while lithium-ion provides maintenance-free operation and faster charging. HAWKER’s 5PzB350 (lead-acid) weighs 580kg vs. 330kg for equivalent LiFePO4 packs, impacting lift capacity.
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| Parameter | Lead-Acid | Lithium |
|---|---|---|
| Cycle Life | 1,200 cycles | 3,000+ cycles |
| Charge Time | 8-10 hours | 2-3 hours |
| Energy Density | 30-40 Wh/kg | 110-150 Wh/kg |
Practically speaking, lead-acid remains popular for budget-conscious operations, but lithium’s 80% depth of discharge (vs. 50% for lead-acid) effectively doubles usable capacity. A 48V 300Ah lithium pack stores 14.4kWh versus 7.2kWh usable in lead-acid. Pro Tip: Retrofit lithium batteries require BMS integration—improper wiring can disable safety cutoff features. For example, a warehouse using LiFePO4 reported 18% productivity gains from eliminating midday battery swaps.
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FAQs
Can I replace 24V lead-acid with lithium?
Yes, but lithium packs need voltage regulators to prevent overvoltage alarms. 24V lithium systems actually output 25.6V nominal—verify controller tolerance first.
How often should I water lead-acid batteries?
Check levels weekly and top up with deionized water when plates are exposed. Never fill after discharging—electrolyte expansion during charging could cause overflow.
