Charge Controllers
Charge Controllers
BrandSteca
Steca Solarix 2020-x2
£ 70GBP · price may vary
BrandSteca- Model
- ST-SX2020-X2
- Specifications
- 4
- System Battery Voltage12V, 24V
- ConnectionScrew terminals
- Weight (kg)0.5
- Warranty2
Overview
State-of-the-art dual battery PWM charge controller that is ideal for use in leisure applications such as boats and motor homes Solar module input suitable 36-cell solar modules. Both main battery and starter battery are charged simultaneously and continuously by the solar module. 90 percent of the available power flows into the main battery while 10 percent of the power is retained to keep the auxiliary battery fully-charged. Charging power split can be adapted using the optional Steca PA LCD1 remote display. The charge controller is equipped with a high-power load output fed by the main battery only. Two different battery types can be connected 12 V or 24 V voltage can be combined for main and auxiliary battery Extremely low self consumption (22mA) Extensive programming and display options with optional graphical remote display Automatic 12/24V detection of battery voltage Multistage charging technology Current compensated load disconnection Automatic load reconnection Temperature compensation USB charge socket for smartphones and tablets
Specifications
| System Battery Voltage | 12V, 24V |
|---|---|
| Connection | Screw terminals |
| Weight (kg) | 0.5 |
| Warranty | 2 |
How to read this datasheet
Steca Solarix 2020-x2 is listed with 4 published specifications from Steca, including system battery voltage of 12V, 24V, connection of Screw terminals, weight (kg) of 0.5 and warranty of 2. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For a charge controller, the figures that matter most are maximum PV open-circuit voltage, the hard limit that must survive cold-morning Voc rise, supported battery voltages (12/24/36/48 V) and chemistries, conversion efficiency, typically 96–99% for a good MPPT unit and whether it offers a load output, temperature compensation and remote monitoring. In any system with a battery and a separate array, the controller is what protects the most expensive component and determines how much of the array's output actually reaches storage.
Choosing a charge controller: the checks that matter
The checks below apply to any charge controller. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Confirm the controller supports your battery chemistry with the right charge profile. Lithium, AGM, gel and flooded batteries need different absorption and float voltages.
- Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
- Choose MPPT over PWM for anything beyond a very small array. An MPPT controller harvests roughly 20–30% more energy because it converts excess panel voltage into charge current instead of throwing it away.
- Size the current rating from array watts divided by battery voltage, then add at least 25% margin for cold, bright conditions where panels exceed their rated output.
Common mistakes
- Sizing on rated array watts alone and ignoring the voltage ceiling, which is the most common way controllers are killed.
- Using a PWM controller with a high-voltage grid-tie panel — the voltage mismatch wastes a large share of the panel's output.
- Running the load output beyond its rating instead of wiring heavy loads directly to the battery through a fuse.
Price and availability
Steca Solarix 2020-x2 is listed at £ 70 (GBP). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Steca locally before ordering.
Steca Solarix 2020-x2 — frequently asked questions
How much does Steca Solarix 2020-x2 cost?
Steca Solarix 2020-x2 is listed at £ 70 (GBP). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of Steca Solarix 2020-x2?
We hold 4 published specifications for this charge controller, including system battery voltage 12V, 24V, connection Screw terminals, weight (kg) 0.5 and warranty 2. The full table is on this page, listed under model ST-SX2020-X2.
Who makes Steca Solarix 2020-x2?
Steca Solarix 2020-x2 is a Steca product, listed under charge controllers with model reference ST-SX2020-X2. The Steca brand page lists the rest of its range so you can compare across the catalogue.
Is Steca Solarix 2020-x2 right for my system?
That depends on what it has to connect to. For a charge controller, check conversion efficiency, typically 96–99% for a good MPPT unit, whether it offers a load output, temperature compensation and remote monitoring and type: MPPT or PWM against the rest of your equipment before price enters the decision. Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
Where can I buy Steca Solarix 2020-x2?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.
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