Guide
How you recharge decides how long a battery can keep going.
| Method | How | Best for |
|---|---|---|
| Grid (shore power) | Plug into a site supply | Overnight recharge, fastest when a large supply is available |
| Generator | Through the generator input | Hybrid sites and remote work |
| Solar | Solar upgrade kit | Off-grid and open-ended runtime |
Charge time is energy ÷ charging power. As an illustration, putting 24 kWh back into a battery from a 3.75 kW generator input takes roughly 6 to 7 hours; from a larger supply it is faster. The Performance model accepts 2 × 100 A AC input for high-rate charging.
Most sites mix methods: solar by day, grid overnight where available, and a generator only when both fall short. See our solar plus storage guide.
Urban construction sites usually have a temporary supply or a neighbouring building to plug into overnight. Grid charging is the simplest and cheapest there.
Events rarely have mains power where the stage is. The battery is charged at the depot, delivered full, and swapped or recharged between event days, sometimes with a small generator running at a distance from the audience.
Remote and off-grid sites lean on solar, with a generator as insurance for cloudy spells. The solar array should be sized so that a typical day's output covers a typical day's use.
Questions answered
Yes. Plugging into shore power is the most common way to recharge.
It depends on the charging supply: energy needed divided by charging power gives the hours.
Yes, through the charging receptacle, though a higher-capacity supply recharges faster.
Keep reading
Get in touch
Tell us the site, the load and the runtime you need. Our Austin engineering team comes back with a configuration, a runtime estimate and a price.
+1 512-316-7347
info@pulsar.industries
WhatsApp +1 512-585-8293
