10 Best Leisure Battery And Split Charger in the UK
Tested and Reviewed: Top 10 Leisure Battery And Split Charger deals with expert ratings from 8.1 to a perfect 10
August 2025 Edition
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1
Editor's Choice9.7
Generic
4mtr D250SE 12V 20AMp Dual DC-DC Battery to Battery Charger Kit with 70amp 10mm² Leads D250SE/RM4
Editor's bottom line:
“This leisure battery and split charger is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”
Main Highlights
- Ctek D250SE Battery to Battery Charger
- 12v 20amp DC Charger
- Solar MPPT - Max Open Circuit Voltage 23v
- Suitable for all vehicles
- Can be used on Euro 5 & Euro 6 Vehicles with smart alternators
- Supplied with pre crimped leads for a simple install into any vehicle
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Picked by 176 people today
2
9.5
CTEK
CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible
Free Shipping
Main Highlights
- Battery Support On the Go: The D250SE is a fully automatic, 5 step charger that supplies up to 20A of power to any 12V lead-acid or lithium* service battery from 40300Ah. It has selectable charge algorithms for AGM and 12V lithium batteries (*12V LiFePO4).
- Achieve Nominal Power from Your Solar Output: Solar Panel Regulator with Maximum Power Point Tracking (MPPT) optimizes available power.
- Charge Service and Starter Batteries: When the service battery is fully charged, the D250SE will automatically redirect maintenance charge power to the starter battery.
- Smart Alternator Compatible: Full functionality with all types of alternators.
- Built-In Temperature Sensor: Allows you to achieve maximum charge levels no matter what the temperature.
- Safe and Easy to Use: Splash and dustproof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. Clean voltage and current delivery ensures no surges or spikes.
- Protects Sensitive Equipment: Unlike less-sophisticated chargers, there is no need to disconnect the battery; the D250SE is specially designed to not damage electronic systems. No overcharge or undercharge ever.
- 2-year warranty.
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3
9.5
Victron Energy
Victron Energy Orion-Tr Smart DC to DC Charger (Bluetooth) - 12/12-Volt 18 amp 220-Watt - Battery Charger for Dual Battery Systems - Isolated
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Main Highlights
- Professional DC to DC Charger: The Orion-Tr Smart DC-DC Charger is a professional charger that uses three stages to efficiently and safely charge your batteries.
- Dual Battery Charging: The Victron DC to DC charger is ideal for vehicles or boats where the alternator and start battery are used to charge the service battery.
- Built-in Bluetooth: The DC to DC charger can be monitored and cotrolled with smartphone or tablet via Bluetooth and the VictronConnect App. This allows you to see the charger's status and make adjustments as needed.
- Flexible Power Solution: The DC DC charger is suitable for both lead acid and lithium batteries and unlimited multiple units can be connected in parallel to increase output power.
- Easy to Install: The screw terminals provide a convenient and easy installation process, eliminating the need for specialised tools.
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4
9.2
Durite VSR Pro Kits
7mtr Pro Split Charge Kit 12v 140a Durite VSR + Battery Terminals + Fuse Box with 110a Cable SCKD317P
Main Highlights
- Durite 0-727-33 Voltage Sense Relay Split Charge System
- Complete with Battery Terminals + 6-Way fuse box
- Simple to install + supplied with easy to understand Instructions
- Suitable for camper vans, motor homes, caravans, 4x4s and Marine
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5
9.0
Numax
Numax 12V 10A Leisure Battery Charger Caravan Motorhome, Marine, Boat, Mower
Main Highlights
- Numax 12V 10A Leisure Battery Charger Caravan Motorhome Marine Boat Mower
- Brand : Numax
- Product type: BATTERY CHARGER
- Red
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6
Best Value8.8
Save 17%
Generic
6M Split Charge Relay Kit 12V 140amp VSR 10mm 70Amp Cable With Manual/Auto Modes VSR-Voltage Smart Battery Isolator, Sensitive Relay Kit with LED Screen for Leisure Battery
17% OffFree Shipping
Main Highlights
- Smart Leisure Battery KitThe Split charge relay kit Designed to deliver exceptional performance without compromising on space. Measuring just 2.6" x 2.6" x 2", it is the ideal solution for tight installations under the hood or for battery relocation. Compared with battery isolation diodes, there is no voltage drop, which is more reliable to use.
- LED Display for Battery status Leisure battery kit automatically combine two batteries when charging, and isolate when not charging. The batteries are automatically isolated for enhanced safety, LED display that shows the current voltage status in real time so that you can check the battery status at any time.
- Dustproof & WaterproofVSR Split charge relay is built to last, withstanding extreme weather conditions and vibrations. Its IP65 certification ensures safe off-road use in dusty, wet, and unpredictable environments, providing you with a reliable and durable solution for your marine or automotive dual battery needs.
- Easy to InstallDual battery isolator kit 12V comes with full installation accessories and cables (battery cables, battery terminals, copper lugs, heat shrinks, cable ties) simple instructions- clear and concise.It is easy enough to follow and set up connecting to your battery then on to the control panel for appliances.
- Wide CompatibilityVoltage Sensitive Relay 12v is long enough(6m) and suitable for almost anywhere such as ATV, UTV, boats, RV'smarine vehicle, truck, caravan and other equipment.This versatile solution is perfect for all your automotive power needs.
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7
8.6
Melopr
5m Split Charge Relay Kit Waterproof, 12V 140Amp Dual Battery Isolator For Truck Caravan Yacht Battery Controller Voltage Sensitive With Led Screen Display
Free Shipping
Main Highlights
- Upgraded Battery Isolator with LED Display: Our Auto/Manual 12V 140 Amp Battery Isolator features a convenient LED voltage display, allowing you to monitor your battery's performance. The voltage sensitive relay activates at 13.3V and de-energizes at 12.8V, ensuring your main battery is always fully charged and ready to start your vehicle
- Safe and Reliable Performance: Made from high-quality materials and designed with IP68 waterproof and shockproof construction, our voltage sensitive relays offer dependable performance even in rough conditions. Dual Battery Isolator protects your power source and ensures your main battery is always ready to go
- Complete Installation Kit: Our VSR Split Charging Relay Kit comes with everything you need for an easy installation, including battery isolator, cables, fuse holders, and an instruction manual. Ideal for use in a wide range of vehicles and equipment
- Versatile Power Solution: Our split charging relay kit can power any ground or marine vehicle, including campers, ATVs, boats, cars, minivans, trucks, RVs, and yachts. Its versatile design makes it the perfect solution for all your vehicle power needs
- Charge Auxiliary Batteries with Ease: Our kit allows you to charge your auxiliary/leisure battery packs without discharging your starter battery. Please note, fuse installation is required before use. With our Split Charging Relay Kit, you'll have all the power you need to keep your vehicles and equipment running
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8
8.3
Save 12%
Heart Horse
Heart Horse 3m Split Charge Relay Kit,12V 140Amp Smart Dual Battery Isolator Kit Manual/Auto Modes VSR-Voltage Sensitive Relay Kit with LED Screen, Voltage Display for Truck,SUV,RV,ATV,UTV,Boat
12% OffFree Shipping
Main Highlights
- VOLTAGE SENSITIVE RELAY Automatic /Manual 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. Voltage Sensitive Relay (VSR) cuts in at 13.3V and cuts out at 12.8V to ensure your primary battery is always charged and ready to start your vehicle. It's like having two separate power sources for each battery while only having one alternator!
- UNIVERSAL COMPATIBILITYLike Having Two Separate Power Sources,The Dual Battery Isolator Kit Enables Your Accessories to Run From a Separate Battery While the engine is not running on your vehicle While keeping your Main Battery Charged,power up any ground or marine vehicle including ATVs, boats, cars, mini-vans, trucks, RVs, and yachts; Perfect versatile solution for all automotive power needs.
- EASY TO INSTALLThe VSR split charge relay kit comes with full installation accessories and cables (battery cables, battery terminals, copper lugs, heat shrinks, cable ties) that make it easy for users to install it independently to vehicles, boats, recreational vehicles, and other equipment.
- SAFE&EFFICIENT The dual battery isolator efficiently manages and protects power, preventing over-discharge of the main battery and ensuring full charging of the second battery. With high-quality materials and an IP68 waterproof, dustproof, and vibration-proof construction, our battery isolator delivers reliable performance even in harsh environments.
- BUY WITH CONFIDENCEThis 12V dual battery isolator kit comes with a 30-day money-back guarantee, providing reliable and efficient performance for your vehicle or boat, and allowing you to purchase with confidence.
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9
8.1
UCkasayfy
3m Split Charge Relay Kit 12v 140amp Leisure Battery Kit Voltage Sensitive Relay VSR Smart Dual Battery Isolator Kit for camper auto van
Free Shipping
Main Highlights
- FunctionVoltage Sensitive Relay(VSR) cuts in at 13.3v and cuts out at 12.8v to ensure your main battery is always charged and ready to run your vehicle. The dual battery isolator can display the voltage, you can check the battery voltage in time
- Secure & EffectiveWhen the input voltage is lower than 11V or more than 17V, the circuit will be disconnected automatically to protect batteries. IP67 waterproof rating helps smart battery isolator perform well in extreme environments
- Wide CompatibilityThis vsr split charge relay kit is suitable for almost anywhere, for ATV, UTV, Boats, RV, marine, vehicle, truck and caravan. 140amp battery isolator is very usefu for storing sports cars and trailers to protect batteries from drained
- Emergency ConditionThe campervan split charger kit can reverse charge in both manual and automatic modes. For example, when the main battery is out of power, switch to manual mode to connect the circuit, the auxiliary battery can charge the main one in reverse
- After-sales ServiceWe have exquisite craft, strict quality control along with excellent after-sales service. That is why our products are worthy of your purchase
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10
8.1
JAOGAUS
Split Charge Relay Kit with LED Screen Display, Smart Dual Battery Isolator Kit 12V 140Amp, Voltage Sensitive Relay kit, for Car, Caravan, Off-road, Truck, SUV, RV, ATV, UTV, Boat
Free Shipping
Main Highlights
- With LED Display: The split charge relay kit has an LED display that can clearly display the voltage. It is widely suitable for most 12V cars, caravans, SUVs, trucks, RVs, SUVs, RVs, ATVs, UTVs, ATVs, UTVs, boats, etc.
- Charging 2 Batteries: This split charge relay kit allows you to charge two batteries at the same time. When the engine starts, the main battery automatically charges. When the voltage of the main battery reaches 13.3 volts, the relay connects the auxiliary battery and the two batteries become parallel, so that the two batteries can be charged at the same time without affecting the power supply for the electrical equipment on the vehicle.
- Protecting the main battery: This split charge relay kit protects the main battery from running out of power. When the engine is turned off, the electrical equipment on the vehicle slowly consumes power. When the main battery voltage drops to 12.8V, the battery isolator will disconnect the main battery, so that when the secondary battery discharges to power the electrical equipment, the main battery will not discharge.
- Waterproof and Durable: This voltage sensitive relay kit provides reliable performance even in harsh environments, safe and durable. This battery isolator has a wide operating temperature range (-50 degrees Celsius - 125 degrees Celsius), is waterproof, shockproof.
- Easy to install: This 12V split charge relay kit includes a full set of installation accessories, no need to purchase additional accessories, and installation is simple. Equipped with multi -language manuals to facilitate your better understanding.
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