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Battery Power Supplies

Instagrid powers even your most demanding equipment while producing no exhaust fumes, helping to reduce your carbon footprint and to ensure a healthier workplace.

Better than generators

With a rated power output of 3,600 W and a peak output of 18,000 W, Instagrid GO is significantly lighter and quieter than traditional combustion generators, all the while delivering superior performance.

Lightweight and robust

Instagrid GO weighs only 21 kg and can be carried in one hand. It’s passively cooled and contains no moving parts. It is IP54 rated and is unaffected by dust or moisture.

Significant cost savings compared to generators

Instagrid batteries are highly efficient and cost 80% less over their lifetime compared to combustion generators. Save money on fuel and avoid maintenance costs altogether.

Battery Power Supplies FAQs

Straight answers to the questions people ask most when choosing and using a battery power supply for site tools and equipment.

What is a battery power supply and what is it used for?icon-minus-redicon-plus-red

A battery power supply is a rechargeable battery unit with an inverter that provides mains-style power from sockets, so you can run tools and equipment without a generator or a mains connection. It is used on construction and maintenance sites, for work in occupied buildings, and in places where noise and exhaust fumes are a problem.

It stores a limited amount of energy, so it suits tools used in bursts better than equipment running at full power all day. Think about the total energy the work needs, and not just the power rating of the tools.

How does a battery power supply compare with a generator?icon-minus-redicon-plus-red

A battery unit makes no exhaust fumes at the point of use, is very quiet and needs no fuel to carry or store, so it can be used in places where a generator would be unsuitable, such as inside buildings or close to people working. There is also less routine engine maintenance.

A generator can keep running for as long as it can be refuelled, while a battery must be recharged and holds a fixed amount of energy per charge. For long, heavy, continuous loads a generator may suit better. For light to moderate loads, short jobs and quiet or enclosed working, a battery unit can be the better fit.

How do I work out whether it will run my equipment?icon-minus-redicon-plus-red

Check the rating plate on each tool for its power in watts or kilowatts, or its current in amps, and add up everything you will run at the same time. The total must be below the unit's continuous output rating. Then think about starting surges, because motors and some tools draw a higher current when they start.

Next consider the energy. The battery capacity is usually given in watt-hours, and the running time is roughly the capacity divided by the power you draw, less some loss in conversion. A heavy tool drains the battery quickly. If in doubt, ask the maker.

What is the difference between rated output and peak output?icon-minus-redicon-plus-red

The rated (continuous) output is the power the unit can supply steadily for as long as the battery has charge. The peak output is a much higher level it can supply for a short moment, which helps with motors and tools that draw a big surge when they start.

Size the unit by the rated output for your running load, and use the peak figure to check that it can start the equipment. The peak is not a level you can run at continuously, and how long a unit can hold a peak depends on the model.

How long will a charge last?icon-minus-redicon-plus-red

There is no single answer, because it depends on the battery's capacity and the power the equipment draws. A small load runs for a long time, while a heavy one empties the battery quickly. Cold weather can reduce the capacity you can use, and losses in the inverter take a share of the energy.

The maker's figures give a guide, but the best way to judge is to note how it performs on your own jobs. Tools used in bursts, such as drills or grinders making short cuts, make a charge last far longer than equipment that runs continuously.

How do I recharge it, and how long does it take?icon-minus-redicon-plus-red

Most units recharge from a normal mains supply, and some can take other charging sources, as set out by the maker. Charging time depends on the size of the unit and the charger, and a full charge can take a number of hours, so it is usually done overnight or between shifts.

To keep working through a long day, some users run a second unit and swap, or top up at breaks. Charge only with the equipment supplied or approved by the maker, and charge in a dry, ventilated place with the unit uncovered.