Free tool · Industrial
Wireless Charging Time & Power Calculator
Estimate charging time for your AGV, AMR, robot or LEV battery — or find the charger power you need for a target charge time.
Battery parameters
Estimate charging time for your AGV, AMR, robot or LEV battery — or find the charger power you need for a target charge time.
Need a different spec?
Output voltage and current can be configured within range to match your battery. Hardware changes are possible as a development project — talk to us first.
FAQ
How do I calculate the wireless charging power my AGV or AMR needs?
Multiply your battery voltage by the charging current the battery management system (BMS) allows, then check that the energy consumed per work cycle can be returned within the available charging time. Always add 10–15% margin for efficiency losses and alignment variation. This calculator does the estimate for you and maps the result to a standard ONEPOINTECH wireless charging module or system.
What efficiency should I assume for industrial wireless charging?
Modern inductive wireless charging systems reach 85–92% DC-to-DC efficiency at their rated air gap (typically 10–50mm depending on the module). Efficiency drops when the gap increases or the coils are misaligned, so design your dock around the rated gap and alignment tolerance of the specific module.
Can opportunity charging replace a large overnight charger?
Yes — for fleets with regular short stops (loading points, waiting zones, parking areas), opportunity charging lets you use a smaller charger that runs more often instead of one large charger that runs overnight. Sum the energy recovered during each stop; if it covers the energy used per cycle, the vehicle can run 24/7 without deep discharges.
What if my battery is not 24V or 48V?
Standard modules cover common AGV, AMR and LEV voltages, and the output is configured to your battery specification within the supported range (roughly 12–60V depending on the model). For unusual voltages, higher currents, or larger air gaps, ONEPOINTECH builds custom wireless charging systems — send your battery spec through the contact form.