Backup power kits

A backup power supply kit is a ready-made solution for the home or business, comprising an inverter and a battery pack designed to work together. Buying the components separately is a more time-consuming and complicated process. You need to check compatibility in terms of voltage, charging currents and BMS protocols. The Altek.ua catalogue features UPS kits of various capacities for homes, offices and small businesses.

Uninterruptible power supply systems for homes and businesses

A home without a backup power supply during a power cut means a boiler that stops working in winter, lights that go out and a flat mobile phone battery. A backup power supply kit solves this in just a few minutes of setup: the inverter switches to the battery instantly, without any interruption to the power supply. The boiler keeps running, the router doesn’t reboot, and the fridge doesn’t defrost.

For businesses, it’s a different story. A till that freezes during a power cut means lost sales and dissatisfied customers. A server without a backup means the risk of data loss. A small backup power kit with a capacity of 640–3000 W covers critical loads and gives you time to shut down properly.

What is included in the backup power supply kit

The basic version of the backup power supply kit comprises two components: an inverter and a battery.

• Inverter (UPS). Converts the battery’s direct current into 220 V alternating current. The basic kit for a flat is based on the Solplanet ASW6000H-S2 AFCI single-phase hybrid inverter, which provides up to 5 kW of power from the battery during a power cut. In the event of a power cut, the switchover takes place in milliseconds – most boilers and routers do not notice this interruption.
• Battery. Included is a Solplanet ASW5120-LB-E lithium iron phosphate battery with a nominal capacity of 100 Ah at a voltage of 51.2 V, corresponding to an energy reserve of 5.12 kWh (usable capacity – approximately 4.6 kWh). The LFP battery is maintenance-free, safe for installation in residential premises, and designed for 6,000+ charge-discharge cycles. If necessary, the capacity can be scaled up by connecting additional modules in a stack to the inverter.

A number of kits come with a set of connecting cables. Everything you need to get the system up and running is already in the box – there’s no need to buy anything extra.

Backup power supply in the event of a power cut

How long the system will last depends on the battery capacity and the load. Here are some practical guidelines for backup power kits from the Altek catalogue:

• Solplanet ASW6000H-S2 AFCI hybrid inverter + ASW5120-LB-E LFP battery (5.12 kWh). With a base load of 300–500 W (lights, router, fridge, TV), this provides 10–14 hours of autonomous operation;
• Solplanet ASW6000H-S2 AFCI hybrid inverter + two ASW5120-LB-E LFP battery modules (10.24 kWh in a stack). With a base load for a private house of 500–700 W (boiler, pump, fridge, lighting, small household appliances), this equates to approximately 13–18 hours of autonomous operation.

LFP batteries can be discharged to 90% of their rated capacity without any loss of service life – hence the actual runtime is close to the calculated figure.

If longer runtime is required, the battery bank capacity can be scaled up by connecting additional batteries to the inverter. Altek’s managers will help you calculate the configuration for your specific load and required runtime.

How to choose the right UPS kit

The first step is to determine the load. Note down the power consumption of everything that needs to remain operational during a power cut: the boiler, router, lighting, and fridge. Add these figures together. This is the minimum power rating required for the inverter. Allow for a 20–30% margin, taking into account the inrush currents of motorised loads.

The second step is to calculate the runtime. Multiply the total load in kW by the required number of hours to get the required battery capacity in kWh. For LFP batteries, you can allow up to 90% of the nominal capacity as usable capacity – lithium iron phosphate cells can be deeply discharged without losing capacity. In other words, a 5.12 kWh battery will actually deliver around 4.6 kWh of usable energy.

Step three – load type. A boiler, pump and fridge require a correct voltage waveform and stable frequency. All inverters in Altek kits generate this – there are no restrictions on the type of equipment connected.

If the calculation seems complicated – call an Altek manager. Simply state what needs to be powered and for how many hours. They will select a ready-made UPS kit or assemble a configuration to suit your requirements.

Where can I buy a backup power supply kit in Ukraine?

At Altek.ua, you can purchase a UPS kit with an official warranty and delivery throughout Ukraine. Items are dispatched from our warehouses in Dnipro and Kyiv. If the configuration you require is not available among the ready-made kits, you can order a set tailored to your load via a sales manager. They will select an inverter and battery, advise on pricing, check compatibility and compile the items into a single order.