Chargers
Batterytester 6V - 48V - Precise monitoring
This versatile battery tester is the ideal diagnostic device for all users who work with a wide range of battery systems. With an extremely wide measuring range from 6V to 48V, it covers everything – from motorbikes, cars and lorries to electric scooters, golf caddies and solar storage systems. The device allows you to check battery voltage and state of charge in seconds, so you can immediately identify defective or discharged batteries and prevent failures.Highlights at a glanceExtreme voltage range: Usable for 6V, 12V, 24V, 36V and 48V batteries without manual switching.Precise status display: Reliably informs you about the current voltage and the estimated state of charge (SoC) of the battery.No separate battery required: The device supplies itself directly from the battery to be tested ("Powered by Test Object").High safety: Equipped with reverse polarity and overvoltage protection for safe application.Easy to use: Connecting the pole clamps is sufficient – the result is displayed immediately on the screen or via LEDs.Robust design: Shock-resistant housing, ideal for daily use in workshops, garages or mobile service.Versatile diagnostics for all battery typesWhether you want to check a small 6V vintage battery, a classic 12V car battery or a 48V drive battery from a forklift – this tester detects the applied voltage. It is optimised for all common lead technologies (standard lead-acid, gel, AGM). By regular monitoring, you can avoid deep discharges and significantly extend the lifetime of your batteries.Ideal for automotive, marine and industryThanks to the support of voltages up to 48V, this device is particularly valuable for users of e-mobility (e-scooters, rehab tech) and renewable energy (off-grid solar systems). It belongs in every toolbox to quickly rule out whether the battery is the cause of a starting problem or system failure in case of malfunction. Features ModelUniversal battery tester / monitor (6V - 48V) ApplicationPrecise monitoring of state of charge and voltage (automotive, solar, boat, industry) Measuring range (voltage)6V to 48V (DC) - Configurable Compatible battery types* Lead-acid (wet, gel, AGM) * Lithium-ion (Li-Ion) * Lithium iron phosphate (LiFePO4) DisplayBacklit LCD (background lighting) Measured values* Voltage (Volts) * Capacity (Percent %) * Graphical battery bar Accuracy± 1% (precision measurement) Power consumption< 5 - 10 mA (energy efficient) Protection functionsReverse polarity protection (protection against incorrect connection) Dimensions (L x W x H in mm)approx. 61 x 33 x 13 (standard mounting size) FAQs about the battery tester 6V - 48VDo I need to set the device to measure 12V or 24V?No, high-quality testers in this segment feature an "auto-sensing" function. Simply connect the device; it detects the voltage range automatically and displays the corresponding result.Can I also use it to test lithium batteries?That depends on the specific model. Most simple testers are based on the voltage curves of lead-acid batteries. As lithium batteries (LiFePO4 or Li-Ion) have a flatter discharge curve, the percentage display may be inaccurate, but the pure voltage display is correct and usable.Does the tester put a heavy load on the battery?No, pure voltage and capacity testers mostly measure with high impedance and only draw a minimal current from the battery for display operation. They do not simulate a cold start current (like large load testers), but serve for quick status evaluation.Is the device waterproof?As a rule, these testers are splash-proof (e.g. for use under the bonnet), but not waterproof. They should not be left out in heavy rain or submerged in water.
Beltrona Desk charger
The Beltrona 12V/3A desktop charger is a compact and extremely reliable solution for the regular and gentle charging of 12-volt lead-acid batteries. It perfectly bridges the gap between weak trickle chargers and large, unwieldy workshop units. With a constant charging current of 3 amps (3000 mA), it quickly restores discharged batteries to full capacity without subjecting the cell chemistry to thermal stress caused by excessively high currents.Fitted with robust, colour-coded crocodile clips, the charger can be connected to almost any standard battery terminal in no time at all. Thanks to its intelligent, microprocessor-controlled charging electronics, the device operates fully automatically. As soon as the final charging voltage is reached, it switches to trickle charging, thereby effectively protecting the battery from harmful overcharging.Highlights at a glanceUniversal compatibility: Ideally suited for all common 12V lead-acid battery types (wet batteries, maintenance-free AGM, VRLA and gel batteries).Fast charging: Delivers a powerful 3-amp charging current for rapid yet battery-friendly recharging.Flexible crocodile clips: Enable a quick, safe and universal connection to a wide variety of battery terminals.Comprehensive safety: Built-in protection mechanisms against short circuits, reverse polarity (incorrectly connected terminals) and overloading.Fully automatic: Automatic switch to trickle charge once the battery is fully charged, to maximise battery life.Compact design: The lightweight plastic desktop unit fits anywhere and is easy to store or transport.Areas of applicationThe Beltrona 12V/3A charger is the ideal all-rounder for workshops, garages and hobby rooms:Motorcycles & Cars: Ideal for charging motorbike, scooter, quad bike or small car batteries.Garden & Leisure: Ensures that the batteries in ride-on mowers, boats, golf trolleys and electric pasture fencing systems remain fully charged.Safety features: For maintenance and occasional recharging of 12V buffer batteries in alarm systems or small UPS systems.Hobbies & Model Making: A reliable power supply for charging 12V lead-acid batteries in bait boats or large model vehicles.Installation & Safety InstructionsCorrect connection sequence: For safety reasons, always connect the red terminal to the positive (+) terminal and the black terminal to the negative (-) terminal of the battery first. Only then should you plug the mains plug into the socket.Good ventilation: Gases may be produced when charging open lead-acid batteries. Always charge batteries in well-ventilated areas and avoid sparks in the immediate vicinity.Dry environment: The charger is designed for use in dry indoor environments (workshop, cellar, garage). It is essential that you protect the housing from rain and direct exposure to moisture.Safe disconnection: Once the charging process is complete, first unplug the charger from the mains socket. Only then should you remove the crocodile clips from the battery terminals. Features ModelBeltrona 12V-3A desktop charger Supported battery types**Lead-acid, AGM, gel, VRLA** Rated output voltage**12 V** Max. charging current**3.0 A** Recommended battery capacity**10 Ah to 60 Ah** Charging procedure3-stage (IUoU) Input voltage100–240 V AC, 50/60 Hz Connection Output**Alligator clips** (red/black) DisplayStatus LED (Charging / Full) SafetyShort-circuit, overload and reverse polarity protection FAQs on the Beltrona 12V/3A desktop chargerFor which battery capacities (Ah) is this charging current optimal?Best suited for capacities of approx. 10 Ah to 30 Ah. At 3 amps, you can charge these medium-sized batteries (e.g. from a ride-on mower or motorbike) quickly and gently. In theory, you can also connect larger car batteries (e.g. 60 Ah), but a full charge will then take correspondingly longer (roughly estimated at approx. 20 hours).Can I use this to charge lithium batteries (Li-ion or LiFePO4)?No, this is not recommended. With its voltage curve, this charger is specifically tailored to the cell chemistry of lead-acid batteries. Lithium-ion batteries require a different charging profile and often need to communicate with the battery management system (BMS). Using a charger designed solely for lead-acid batteries can damage lithium-ion cells.Will the device overcharge my battery if I leave it plugged in for days on end?No, the device operates fully automatically. As soon as the charger detects that the battery is fully charged, it automatically switches to what is known as trickle charging. Only very small currents then flow, which merely compensate for the battery’s natural self-discharge.