Batteries are the main cause of cold-weather breakdowns, so it pays to have a charger. A good one will not only get you on your way but will also keep the battery in top condition with regular maintenance. Plus, for infrequently used cars, the best portable car battery chargers will keep them ready to go when you want.
The best portable car battery chargers are competent of rejuvenating a lifeless vehicle battery in minutes. Now car battery booster packs boast the ability to charge gadgets, like mobile phones, cameras and tablet PC’s. Don’t get stranded with an expended phone or vehicle battery. But choosing a charger is not easy due to the bewildering array of charging modes, battery types and specs, so which is the one to keep you motoring?
Top 10 best portable car battery chargers UK 2021
You can mitigate the inconvenience to your day, by keeping the car regularly driven and storing a car battery charger in your boot or garage. The best portable car battery charger depends on how you want to use it, how often you use it, and how quickly you want your battery to charge. Follow our guide to keep you fully charged with the best portable car battery chargers for 2021.
1. Streetwize Accessories Compact 12 V 6 A Battery Charger.
Great for lead and acid batteries, this Streetwize 12V Compact battery charger is best for those on a budget.
Double insulated to protect against thermal overload, like other chargers, it is portable, robust, provides LEDs to show the current charging levels and will protect you and your battery if the connectors aren’t positioned correctly. It provides good charging of all types of batteries, for up to 10 hours and reliably charges from a flat state – saving you much inconvenience if you’ve left a light on.
2. RAC Rechargeable Heavy Duty
Comes with battery status led indicator with dual 12v dc output sockets. Built-in lead acid rechargeable battery. Compact and easy to use recharges from 230v main adapter or via the car battery. This compact, lightweight and easy to use starter is suitable for 1500cc petrol engines and 1200cc diesel engines. It has a built-in, sealed, lead acid rechargeable battery which charges from your vehicle battery. It also features a battery status LED indicator, two 12V DC output sockets and 0.5m booster cables with insulated clamps.
3. Maypole MP7428 Electronic Battery Charger
Another keenly priced charger, this time from the Screwfix line-up. If you find chargers baffling this could be for you, because everything is automatic. The only adjustment is to the display, which defaults to voltage, but can also show charge rate and progress. Short bursts of power when charging meant it could deliver just over half its rated eight amps and hit 80 per cent at close to the same time as the CTEK. Problems in the EMC test meant it finished third. Battery charger Electronic Smart. 8A 12V electronic Smart charger. Fully automatic powerful Smart charger Recommended for a wide range of vehicles.
4. JXWL Car Battery Charger
JXWL Car Battery Charger, 8 Amp 12V 24V 3-Stage Automatic Trickle Battery Charger Maintainer with LCD Screen UK Plug for Car. This is a fully automatic battery charger with 3 charge stages,multi-mode one-button switching,does not hurt the battery. Charge LEDs dynamically track the batteries state-of-charge when a load outpaces the charge current. Heat dissipation:Mini cooling fan extend the life of the charger.
this product has multiple protection, overcharging protection, Overvoltage protection, overcurrent protection, overheating protection, low voltage protection, etc. Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely.
5. N Car Battery Charger
This product repair various battery problems, to solve battery power, power acceleration and internal resistance problems. pulse repair function can help to repair your loss battery and extend battery life. ideal for repairing batteries that have not been used for a long time. note: it also not repair a battery back to 100% new.
Built in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits and overheating.
Automatic data display carousel, can display / current / voltage / power easy to operate: precise control of cpu temperature, intelligent charging.
6. BUDDYGO Car Battery Charger
Built-in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits and overheating.
This charger is designed for 12V and 24V batteries, Wide voltage support 110-265V input current, automatically adjust the charging current, easy to deal with a variety of harsh voltage environments.
BUDDYGO Car battery charger, also battery maintenance device, Pulse repair function can help to repair your loss battery and extend battery life. Note: It cannot activate a dead battery or repair a battery which is damaged seriously; it also cannot repair a battery back to 100% new.
7. Einhell Battery Charger
Equipped with a microprocessor controller for a wide variety of battery types used in motor vehicles and motorcycles. A multi-stage charging cycle, push button to select between 6/12V vehicles.
For gel and AGM batteries as well as zero and low maintenance lead-acid batteries. These all-rounders come with a range of technical protection and maintenance mechanisms. The chargers are designed with a priority on the high-speed, low-stress charging of the batteries, for a service life which is as long as possible with no compromise on full performance.
8. Coldspot Car Battery Charger
This product have reverse polarity protection (for positive and negative connection faults) short circuit protection, overcurrent protection, overheating protection, undervoltage protection. Suitable for 12v-24v 2ah-150ah lead acid lithium battery (agm, gel, mf, sla, vrla), diagnose and repair battery problems and extend battery life for cars, trucks, motorcycles, lawnmowers or boats.
Connect the battery without connecting the power supply, it can display the remaining battery voltage. keep track of your battery status and see if you need to charge. intelligent charging, automatic shutdown at full charge, a repair button.
9. CTEK MXS 5.0 Battery Charger
CTEK’s advanced microprocessor will control battery charging with automatic temperature compensation – meaning, your battery will be charged at an optimal level, no matter the surrounding temperature.
Before charging, the charger will make a quick diagnosis of the battery to establish if it can receive and hold a charge. If not, the error LED light will turn on.
It performs a battery desulfation before the charging starts (they’ve patented this technology). As a result, your battery will always get an optimal charge.
There’s a unique charging program for AGM car batteries. These are mostly found in newer vehicles with stop/start technology, and the AGM technology itself is mainly reserved for high-end car batteries.
10. Ring RCB212 12V Battery Charger
The RCB212 comes with full instructions and if you accidentally lose those there are more instructions printed on the charger itself and we have included the manual pdf on this page. The charger has a large carry handle making it easy to whip out of the boot of your car and the crocodile clip leads are neatly stowed away to one side of the charger. If you have put the clips on the wrong way round there is an LED that will lite up to tell you Once plugged in and charging the RCB212 will light up the LED that points out its charging happily away, leave it for a little while it should then change to the LED lite up that says charged. This charger will not overcharge and will automatically switch to maintenance mode once fully charged.
5 things to know before you buy a portable car battery
1. Its primary purpose: Most car battery jump starters and battery chargers offer some flexibility, but some portable car jump starter options are more limited in what you can do with them.
2. Starting amps: This is particularly important if you plan to use your portable battery primarily for its original purpose: jump starting engines. A big V8 engine — particularly a diesel engine — could require upwards of 500 ampere current to turnover on a cold day.
3. Total storage capacity: Usually measured in amp hours or milliamp hours (1,000 mAh equals 1 Ah), this matters more if you plan to use your portable jump starter battery and portable car battery charger as a backup or mobile power source. A higher number means more electrical storage capacity. Typical portable batteries are rated from five to 22 amp hours.
4. Chemistry: Portable car batteries still run the gamut, from sealed lead acid battery options to absorbent glass mat to lithium jump battery starter and recently, ultracapacitors. The chemistry matters less for ultimate utility and more for weight, size and, to a lesser extent, cost.
5. Features: All of the possible options are useful, but again, the issue is size and weight. Add all of the features in one unit and the jump starter gets much bulkier, with weight exceeding 30 pounds. For some purposes — camping trips for example — that may not matter much.
Car battery chargers are designed to work with car batteries, but this process can be very dangerous if you don’t know how to properly connect or use the charger. Always begin by shutting off the vehicle, removing the key from the ignition, and checking to make sure the lights, radio, and other electrical accessories also are turned off before touching the battery.
When you connecting the battery charger to the battery terminals, you can get interference from dirt, oil, and other debris that has built up on the battery. To resolve this issue, clean the battery terminals with a dry rag before connecting the charger.
We hope you chosen the best for your car.