Who needs a accumulator of energy from ben 2 Kilowatt hours, capable of powering small and large appliances and utensils? We tried the Bluetti PowerOak AC200P to find out how it goes and above all imagine situations in which it could really make a difference.
First of all how it is done: in dimensions that we can define small, but certainly not compact (42 x 28 x 36 cm), the large 2000 Wh battery pack in a shell equipped with a pair of handles for carrying on the sides, which facilitate but do not make it totally easy to move the weight of about 27 kilograms. Below the flat top surface are two zones for the magnetic induction charging of smartphones, headphones or other compatible devices. In front, however, the following connectors are aligned from right to left: two Schuko sockets, four standard USB, one USB-C that delivers up to 60 watts, a “cigarette lighter” connector, and three DC connectors of 12V / 3A and 12V respectively. / 25A. In the package there are, in addition to the accumulator and power supply for recharging, a MC4 cable for solar panels, a cable for the charging by car and an XT90.
The battery is recharged via the connectors on the right side and allow you to use the charger included in the package or alternative solutions via a special connector, i.e. via solar panels, car charger, fuel generator or a car battery. Based on the type of solution charging time varies, but using the included power supply via a classic home circuit or solar panels for maximum manageable power, viz 700 watt, you will succeed in recharge it in about two and a half hours. The power button is located on the front, near the connectors and next to the LCD touchscreen, the command and control center of the PowerOak.
The operation is elementary and within everyone’s reach: turn it on using the appropriate button and then activate the circuit (AC or DC) you want to use, depending on what you connect. A tap on the LCD screen, after which you can connect the device that you will want to feed, not unlike what you would do at home. Depending on the device used, the available autonomy varies, we will give some examples shortly. Bluetti PowerOak AC200P is equipped with a BMS, acronym for “Battery Management System”, a way to call the power supply control circuit, control of voltages, protection against short circuits, check temperature and controller for charging via solar panels. This circuit, together with the necessary to deliver the current you require at the correct levels, in turn consumes energy. We have calculated that by using the PowerOak until it is completely discharged, about 10% or a little less of the capacity will be absorbed by the accumulator itself, or lost. So gods 2 kWh nominal, you will be able to really use about 1.85 / 1.9 kWh or slightly less (the real capacity is higher than the 2kWh indicated by Bluetti).
Let’s see some indication of what can we feed and for how long, taking a cue directly from Bluetti’s advice: you can feed a classic laptop for 28 hours, one television for about 15 hours, a fridge for 11 hours, one washing machine for 3 and a half hours, a cooker induction or a hairdryer for a little over an hour, or a blender for a couple of hours. By switching to some utensils, you will be able to feed a drill for an hour and a half, a jackhammer for an hour and a quarter, as well as one circular sawand or a welding machine.
We in turn made some tests, connecting small tools, the ones you usually have around the house to do various jobs, such as drills, saws, air compressors and grinders. In all cases we didn’t have any problems. However, there were situations, during our test, in which the PowerOak was blocked due to excessive load, that is when we connected a large circular saw and a large compressed air at the same time.
For this part of the test we visited a carpenter friend who “lent” us his tools. Connected individually we had no problems, while together the Bluetti blocked the supply of energy. We must say that these are not tools that anyone can have at home, and they are not portable either, so our test was more of a provocation to understand how far we could go, as it did not represent a real scenario.
After trying the Bluetti PowerOak AC200P in different situations, it is there perfectly clear the type of user who could adore this energy accumulator, that is, those who love the outdoors and traveling holidays, perhaps aboard a camper and he wants a product that allows him the maximum flexibility during all phases of your day. From moments when he wants to cook or use some household appliance, to moments of leisure. Not only will it be able to have energy available at all times, but the amount of USB ports and the induction charging surfaces at the top are useful for powering many small gadgets or technological devices.
Otherwise, the second type of user who might want this product, namely the craftsmen who work on the go, it wouldn’t really take advantage of all these connectors. In case you fall between the latter, our advice is to opt for other models, such as the Bluetti EB240, more basic in terms of conditions but able to offer the same user experience (indeed, the battery is slightly more large).
Obviously there are also many home moments where you could use the PowerOak AC200P, such as during a barbecue in the garden or a trip outside the city, however, the high price does not make it a suitable solution only for sporadic use.
Source: Tom's Hardware by www.tomshw.it.
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