A clearer picture.
A confident choice.

No — solar panels are not required. You can charge your battery directly from the grid when electricity is cheaper, typically overnight, and use that stored energy during the more expensive daytime period.

The key is a suitable electricity tariff and a battery sized for your home. This lets you benefit from cheaper-rate electricity even if your roof is unsuitable for solar, or you simply don’t want panels. If you already have solar, a compatible battery can also store surplus generation for later use.

Yes, if your tariff allows it. Where the cheaper rate applies to your home’s electricity supply, you can charge both your EV and your home battery during the same cheap-rate window. The battery then stores that lower-cost electricity to help power your home later in the day.

We’ll check the tariff’s eligibility rules and charging window, along with your electrical supply and the power needed to charge both at once. The aim is to make more of the cheap electricity available to you, without assuming every EV tariff works in exactly the same way.

ASW / Solplanet uses the blue Ai-LB-G3 modular battery and a separate ASW inverter. November packages are 20–40 kWh and listed as available now.

DX all-in-one integrates battery and inverter, with listed 10–40 kWh packages. DX split uses a floor-standing EB-1608 battery and a separate inverter, with ASW specified for 8 and 10 kW options, with listed 16, 32 and 48 kWh packages. Both new DX ranges are expected in early December, with availability and installation dates to be confirmed.

These families have different dimensions, power limits, protection ratings and warranty terms. Compare the systems and check the exact model in your proposal.

kWh describes energy; kW describes power. A battery’s kWh capacity tells you how much energy it holds. Power in kW tells you how quickly energy can be supplied or charged. A steady 1 kW load uses 1 kWh in an hour.

More storage can extend running time. More output can help with several appliances at once, but usable output depends on both the battery and inverter. See our inverter guide.

Usually, the starting point is to keep your existing charger and consider a battery-only installation. We’ll review how the charger, battery and home loads share your electrical supply and available cheap-rate hours.

The optional DX charger is there for households that need a new charger. We do not assume an existing charger has to be replaced simply because you are adding a home battery.

Start with the electricity you use and when you use it. The November list offers ASW 20–40 kWh now, plus forthcoming DX all-in-one 10–40 kWh and DX split 16–48 kWh. Only listed battery and inverter combinations are offered.

The calculator uses a 90% usable-capacity assumption and provides an initial storage estimate. We also check simultaneous appliance demand, cheap-rate charging hours, your supply, reserve settings and future needs before confirming equipment. A capacity estimate does not guarantee full-day coverage or the correct inverter.

See the November combinations, cash prices and availability.

For ASW Ai-LB-G3, each module is 630 mm wide × 320 mm high × 185 mm deep. The 20 kWh package has four modules and the 25 kWh package five. Larger layouts need an approved configuration. The separate H-S2 inverter is 483 × 455 × 193.5 mm; the SH is 484 × 679 × 230 mm, in width × height × depth.

A DX EB-1608 split battery is 450 mm wide × 845 mm high × 251 mm deep and weighs 120 kg. DX all-in-one dimensions depend on the exact model. These product dimensions exclude mounting, cabling, access and clearances.

Compare model-specific details. Survey confirms the complete footprint and location.

Nominal energy describes stored capacity. Usable energy depends on operating limits, settings, reserve and losses. The Ai-LB-G3 datasheet gives 19.45 kWh usable for the 20 kWh class and 24.32 kWh for 25 kWh under its stated test conditions.

The DX EB-1608 is 16.08 kWh nominal with up to 90% depth of discharge in the supplied document. DX all-in-one package names are rounded classes. We confirm usable energy for the exact configuration.

The calculator models 90% of stated capacity: nominal energy for DX all-in-one and DX Split, and the rounded supplier package class for ASW pending model-specific confirmation. This is not round-trip efficiency, and charging losses are excluded. It is not a promise of identical energy delivered to appliances.

Yes, a two-stack layout can be considered for the larger modular systems. The supplier’s suggested arrangement for a 30 kWh package is two 15 kWh stacks, each approximately 630 mm wide × 960 mm high × 185 mm deep. For 40 kWh, the suggestion is two 20 kWh stacks, each approximately 630 mm wide × 1,280 mm high × 185 mm deep.

This can help when available height or the preferred appearance makes one tall unit impractical. Each position still needs suitable mounting, access, cabling and the manufacturer’s required clearances, and the system needs space for its separate inverter. Two shorter stacks are not a promise of less total installation space.

We confirm the final layout, compatible equipment and approved interconnections at survey. The 35 kWh arrangement is confirmed individually. Compare the suggested layouts or ask us about your available space.

The Ai-LB-G3 design is modular, with up to five 5.12 kWh modules (25.6 kWh) per tower in its datasheet. Expansion must use an approved configuration and be assessed against the inverter, wiring, battery compatibility and available space.

Tell us about likely future needs before you order. For 30–40 kWh packages, we’ll confirm the complete arrangement rather than assume all modules can form a single tower. Expansion cost and suitability are confirmed when quoted.

The documented Ai-LB-G3, DX all-in-one and DX EB-1608 batteries use lithium iron phosphate, also called LiFePO4 or LFP. Battery management systems and model-specific protections manage operation.

The G3 document lists integrated fire suppression and electrical protection. These features are specific to that product and do not make any battery risk-free. All equipment must meet its manufacturer’s siting and operating requirements.

Yes. A battery can form part of a home energy setup that includes a heat pump. Because heat pumps can increase electricity demand, choosing enough storage and the right inverter is particularly important.

We’ll look at your heating demand, seasonal usage and the other appliances you use at the same time. Inverter options up to 10 kW give us choices for higher-demand homes, subject to compatibility and your electrical supply. We’ll assess the whole setup rather than assume an average summer day represents your winter needs.

When connected to the grid, the home can draw electricity from the grid if the battery runs low or demand exceeds the available system output. That electricity is charged at the rate applying at that time.

That is why storage, output and overnight charging time all matter. The calculator assumes a full overnight charge and sufficient usable capacity for covered consumption; it cannot guarantee every real day will be supplied entirely at the night rate.

No. The Ai-LB-G3 figure is a manufacturer cycle-life test, not a warranty or a guaranteed number of years. The stated conditions are 0.5C charge/discharge, 25°C, one cycle per day, 90% depth of discharge and 70% end-of-life capacity.

Real operation varies. Warranty duration, capacity commitments, exclusions and any other limits come from the applicable written warranty. The 6,000-cycle figure should not be transferred to a different battery family.

For the documented ASW H-S2, maximum battery charging and discharging are 5 kW, including on the 6 kW AC model. The AC inverter rating and battery-port power rating describe different things.

The 8 kW ASW SH supports up to 8 kW battery charge/discharge; the 10 kW version up to 10 kW, subject to the battery configuration and installation limits. Compare the models before choosing an upgrade.

It provides a starting suggestion from the priced combinations. Daily energy use helps choose capacity, but it does not reveal your maximum simultaneous demand, the length of your charging window or your electrical supply limits.

We review those factors before confirming the inverter. Tell us about high-demand equipment and planned changes, including a heat pump, EV or solar. Read what we check.

Often, subject to a compatibility assessment. We need information about your panels, inverter, connections and cable route before confirming the installation.

Solar PV integration or installation requires a separately confirmed scope and quotation. It is not automatically included in the battery package. If integration is unsuitable, grid charging may still be an option on a suitable tariff.

It can, with the correct optional backup setup. We can install an EPS (Emergency Power Supply) to keep selected essential circuits powered during a grid outage. These might include lighting, refrigeration and other agreed essentials, depending on the system and available stored energy.

EPS is not whole-home backup and is not included in the standard installation. It requires a dedicated backup consumer unit and additional wiring, so it is quoted separately.

We’ll discuss what you want to keep running, confirm the circuits and loads the system can support, and explain the limits before you commit. How long backup lasts depends on the battery’s charge at the time and the electricity used by those circuits.

It depends on the stored charge when the outage starts and the consumption of the selected backup circuits. A lower combined load can run for longer; high-demand appliances use stored energy more quickly.

The backup output has a power limit as well as an energy limit. We’ll discuss the essential circuits you want supported, confirm what your chosen system can supply and quote the required EPS equipment separately. We do not promise a fixed backup duration.

No. The current calculator models buying electricity at a cheaper overnight rate and using stored energy later. It does not include solar generation or export income.

If you have solar, the best operation depends on your generation, self-consumption and import/export tariff. We’ll consider those with you separately before confirming the system and likely benefits.

The November cash prices include supply and installation, subject to survey, on the supplier’s stated 0% VAT basis for eligible residential energy-saving materials. Your written quote confirms the exact battery and inverter, VAT treatment, delivery arrangements, cable routes, included electrical work and any additional costs.

The optional 7 kW EV charger is £600 with a battery package. Solar work and EPS backup need a separately confirmed scope and price. Extra property work is agreed before proceeding.

Siting requirements vary. G3 batteries and ASW inverters list IP66; the DX all-in-one and DX-S inverter list IP65. The supplied EB-1608 split-battery document lists IP54 and requires a suitable sheltered location. A separate inverter’s rating does not apply to the battery.

Survey confirms the exact equipment, protection rating, mounting, access, temperature exposure and required clearances. An IP rating does not mean the equipment can be put anywhere.

Operating ranges differ. G3 specifies charging −8 to 58°C and discharging −18 to 58°C. DX all-in-one specifies charging 0–50°C and discharging −15–50°C. EB-1608 specifies charging 0–50°C and discharging −10–55°C.

These ranges do not guarantee unchanged power or capacity at every temperature. We assess the location and exact model requirements. The inverter’s operating range is separate from the battery’s.

The H-S2 inverter datasheet lists a typical 30 dB noise figure and natural-convection cooling. The DX all-in-one lists less than 25 dB with natural cooling. The SH inverter uses smart cooling; its supplied datasheet does not give a noise figure.

We consider location and nearby living spaces at survey. Noise depends on the battery and inverter selected. We will help you choose a suitable location and explain the relevant model specifications.

Yes — through the system’s app. You can monitor your home’s electricity use, battery charging and discharging, stored energy and usage history. Solar generation is also shown where applicable to your connected setup.

This helps you see where your electricity is coming from and how the battery is working for your home. We’ll explain the monitoring available with your chosen system and help you understand the information it provides.

Monitoring needs the communication setup appropriate to your model. The H-S2 datasheet describes app/portal monitoring through a Wi-Fi stick; the larger SH inverter supports Wi-Fi / wired LAN dongle options. The DX all-in-one datasheet lists Wi-Fi as optional.

We’ll confirm the connection and equipment supplied, and consider signal availability at the planned installation position. The home battery and optional EV charger may use different apps and connections; we will explain both at handover.

The time depends on the agreed system, cable route, electrical work and any optional solar, EV or backup connections. Your survey and proposal establish the scope, and the installation team confirms scheduling.

Manufacturer references to one-day fitting or faster assembly are not a guarantee for every property. Any necessary network approvals, additional work and product availability also affect the installation date.

The Distribution Network Operator (DNO) manages the local electricity network. A battery or inverter installation may need a notification or approval, depending on the equipment and design.

We’ll identify the process required for your proposed system and explain how it will be handled as part of the installation plan. A model’s listed grid standards are not a substitute for the requirements of your particular installation.

Yes. The handover explains normal operation, charging settings and the monitoring supplied with your system. If EPS backup is included in your quote, the supported circuits and limits should be made clear too.

You’ll be able to identify your equipment and its warranty information, and know how to ask for help. Read about handover and support.

The optional DX 7 kW single-phase charger adds £600 to a listed battery package. Your quote confirms the model, installation scope and any additional work or equipment.

The documented AC007E-HP variants have a Type 2 cable, app controls, RFID access, scheduling and adjustable current. Exact connection options and tariff compatibility must be checked for the unit supplied. Explore EV charging.

There are two documented variants: AC007E-HP-01 has 4G and no Wi-Fi; AC007E-HP-02 has Wi-Fi and no 4G. Both list Bluetooth, Ethernet and an RS485 interface.

We’ll confirm the version supplied, connection requirements and any applicable data or service costs. Do not assume both Wi-Fi and 4G are included in one unit.

The charger is rated up to 7 kW, but the actual rate is also limited by the vehicle’s onboard charger, the electrical supply and the installation settings. The energy needed depends on how much charge the car already has and how much you want to add.

We’ll discuss your mileage and overnight window when planning the installation. A charger’s advertised rating alone cannot guarantee a particular charge time or miles added per hour.

The charger datasheet lists a smart meter for dynamic load balancing as an option. This can help adjust EV charging to the power available at the property when other appliances are operating.

It needs the right equipment and configuration. Your quote will confirm whether it is included and the cost; it should not be assumed to come automatically with the standard charger add-on.

App scheduling lets you choose charging times, but it is not the same as automatic integration with an energy supplier’s smart tariff. The datasheet does not establish compatibility with every supplier, vehicle or smart charging service.

Before you rely on a particular rate or automatic service, check the supplier’s current eligibility and compatibility requirements. We’ll discuss the exact charger and battery setup proposed for your home.

Your usage, tariff and system size determine the potential saving. The principle is simple: charge when electricity is cheap, store it, then use it when electricity is more expensive. Our savings calculator uses your bill or daily electricity use to estimate the result for your selected system.

The model assumes a full overnight recharge, 90% usable battery capacity and all covered consumption at your chosen night rate. It keeps the standing charge in both bills. Charging losses, changing demand, maintenance and other costs are not included, so the result is an estimate rather than a guaranteed saving.

If you have solar, you may also be able to store surplus generation and use it later. Solar generation and export income are not included in this calculator. We’ll discuss your actual setup before confirming a recommendation.

You do not need to have an overnight tariff already. Enter your current single unit rate, or a blended average if you pay different rates. To work out a blended rate, divide your electricity usage charges in pounds by the kWh used, then multiply by 100 to get p/kWh. Exclude standing charges. For example, £100 ÷ 400 kWh × 100 = 25p/kWh.

If you already have a cheaper overnight rate, tick the box and enter it. Otherwise, the calculator starts with 7p/kWh as an assumed future tariff. You can change this figure. It is an illustration, not an available tariff offer or a guaranteed price.

When a future rate is used, the estimate combines buying a battery with switching to a suitable tariff. Your website results, saved estimate and quote email label this clearly. Your overnight choices stay saved on this browser until you change them or reset.

Explore supplier tariff examples. Some require an EV as well as a compatible smart meter. Check eligibility, cheap hours, day rates and standing charges before switching; the calculator keeps its standing-charge assumption unchanged.

Every estimate includes the same 57.19p/day standing charge before and after adding a battery. This is Ofgem’s Great Britain Direct Debit average for July–September 2026, including VAT.

We hold this benchmark constant for the illustration, so it does not create a battery saving. Actual standing charges vary by tariff and location; Northern Ireland is outside Ofgem’s price cap. If you enter a monthly bill, we subtract this assumed standing charge before estimating your electricity use.

The calculator uses November 2026 cash package prices, including supply and installation, subject to survey. A selected 7 kW EV charger adds £600. Solar work is quote-only. Your written quote confirms VAT eligibility, exact equipment, installation scope and additional work.

Cash discounts are already reflected. The estimate and payback exclude borrowing costs. Finance package prices may differ, and any finance quotation needs full approved terms and eligibility. The displayed cash price is not a monthly repayment or total repayable.

ASW / Solplanet packages from 20–40 kWh are listed as available now. The new DX all-in-one 10–40 kWh and DX split 16–48 kWh ranges are expected in early December. We confirm availability and the installation date for your order.

The September promotion has ended. The November package list shows current cash prices and exact battery/inverter combinations. Enquiring does not reserve stock or place an order.

Warranty terms depend on the exact battery, inverter and accessories. The supplied DX EB-1608 split-battery document lists a five-year battery warranty. Your proposal confirms the applicable battery and inverter cover, conditions, exclusions and claims process. We do not apply one warranty term to every product family.

The documented DX EV charger has two-year product cover, with an optional extension mentioned in its datasheet. Confirm the version, availability and full terms in your quote. Workmanship cover is separate, and cycle-life test figures are not warranty duration.

We review your details, usage and selected system or package, then get in touch to discuss your home. A site assessment helps confirm the equipment, position and installation work needed.

You can review the written system specification, price, installation scope, payment details and warranty before deciding. Sending a quote request does not commit you to buy. Request your quote.

Email info@dxenergybattery.co.uk with your system model, a description of the issue and any relevant app alert or screenshot. Keep your quote, handover information and warranty documents handy so the equipment and cover can be identified.

Follow the supplied operating and care instructions and keep required access and clearances available. Support arrangements and any warranty remedies depend on the terms for your installation.

We help you compare storage, power and installation around your home. We review your use and tariff, explain the available combinations and show the assumptions behind the estimate.

• ASW packages available now, with new DX ranges expected early December.
• Published November cash prices and equipment-specific proposals.
• Installation scope and any extra work agreed before you commit.
• Monitoring and handover appropriate to the equipment supplied.
• Model-specific warranty information and support details.

You do not need solar panels. A suitable grid-charged battery can store cheaper electricity for later use, subject to tariff, household demand and installation suitability.