This is a series of questions for all the experts about a power problem that needs solving:
My colleagues and I are working on an off-grid sustainable construction project. We are not going to be near any source of electricity. For budgetary and logistics reasons, solar panels and generators are not an option. What we do have access to is industrial/forklift batteries. We need to be able to power several tools and possibly some small appliances. Our estimated power use is 5kWh a day. The plan is to charge batteries with this amount of power every day at a project management office in a town near the site. The project will only last from several months to a year, so a particular brand or whether the batteries are new/used is of little concern. We have done just enough research to realize we don’t know enough to know where to begin solving this on our own.
That being said, here are our questions:
- Is there a preferred type of battery that works well for being used 12-18 hours at a time? Deep cycle? Golf cart? Forklift?
- For power tools and lighting equipment, is there a particular voltage the battery needs to be? 12V, 24V, 48V?
- Our project office will likely be in an industrial park. When looking for space, what electrical specs should the building have?
- Can most of these large batteries recharge within a 24 hour period?
- Weight: we will have to haul these batteries to the site daily after charging. Which batteries are light enough to reasonable pack up every day and carry to the site (50 lbs or less)?
- Wiring: for sustained use, should we wire the batteries as series or parallel?
- Safety: what are the real dangers of handling the batteries and what precautions can we take to protect ourselves?
- Does the charger have to be the exact same voltage and Amp-hours (Ah)?
- What type of inverter do we need? 5kW? Does the type of inverter we use depend on the type of batteries?
I thank you in advance if you are able to provide any answers or offer advice.
My colleagues and I are working on an off-grid sustainable construction project. We are not going to be near any source of electricity. For budgetary and logistics reasons, solar panels and generators are not an option. What we do have access to is industrial/forklift batteries. We need to be able to power several tools and possibly some small appliances. Our estimated power use is 5kWh a day. The plan is to charge batteries with this amount of power every day at a project management office in a town near the site. The project will only last from several months to a year, so a particular brand or whether the batteries are new/used is of little concern. We have done just enough research to realize we don’t know enough to know where to begin solving this on our own.
That being said, here are our questions:
- Is there a preferred type of battery that works well for being used 12-18 hours at a time? Deep cycle? Golf cart? Forklift?
- For power tools and lighting equipment, is there a particular voltage the battery needs to be? 12V, 24V, 48V?
- Our project office will likely be in an industrial park. When looking for space, what electrical specs should the building have?
- Can most of these large batteries recharge within a 24 hour period?
- Weight: we will have to haul these batteries to the site daily after charging. Which batteries are light enough to reasonable pack up every day and carry to the site (50 lbs or less)?
- Wiring: for sustained use, should we wire the batteries as series or parallel?
- Safety: what are the real dangers of handling the batteries and what precautions can we take to protect ourselves?
- Does the charger have to be the exact same voltage and Amp-hours (Ah)?
- What type of inverter do we need? 5kW? Does the type of inverter we use depend on the type of batteries?
I thank you in advance if you are able to provide any answers or offer advice.
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