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A battery is a fundamental requirement for motorhomes and campers - whether you spend all your free time exploring or have a trip planned for the summer holidays.
One of the most popular models is a 120AH leisure battery.
The AH, or amperage hours, refers to the amount of power your battery can produce and over what period.
Today the Snappy Start team has compiled a shortlist of all the essential features you should check for before buying a 120 amp leisure battery, with a guide to why these performance properties are so important.
Your 120 amp leisure battery will run every electrical item in your camper, think:
The difficulty is that there are thousands of brands and specifications out there, and some aren't up to the task.
It would be best to have a great quality 120AH leisure battery that you can recharge multiple times, providing smooth, uninterrupted power that won't let you down when you're away from an electrical hook-up.
We appreciate that all the metrics and stats included with a 120AH leisure battery may not make sense if you aren't a seasoned camper!
Below you'll find a checklist of the specifications we think make the most difference to your camping experience.
First, we'd recommend you order a leisure battery 120AH that comes fully charged.
It can take hours (or days) to reach a 100% charge, so a depleted battery on delivery isn't going to be of any use if you have an imminent trip planned.
It's also important to have a ready-to-use 120AH leisure battery because once the charge gets to 50% or below, it's already using one of its recharge cycles - these are finite, as we'll explain shortly.
The startup power or cold cranking amps (CCA) on a 120AH leisure battery indicates your battery's ability to start working in even freezing temperatures.
You'll usually only see the AH rating on the display, so check this detail on the product information!
CCA tends to be more important on a starter battery (like those you use in a car) - but they are relevant to leisure batteries, especially in a colder climate.
Why is CCA necessary in a 120 amp leisure battery?
Because the higher the rating, the more reliable your battery will be, particularly on cold mornings or chilly evenings when you don't want to be without your heater.
Our 120AH leisure battery units have a CCA of 900, which is a powerful grade and means that you could use your battery to start up a motor, run a bigger appliance, or even jump-start a car if you were in a real pinch!
Next, let's talk about weight. Some leisure battery 120AH models weigh more than others, which is a factor if you have a camper approaching its total weight capacity.
If your battery dock is located above the axle, you normally have more scope to buy a larger model.
But, if you keep your 120 amp leisure battery near the front of the vehicle, be cautious about checking whether this impacts the nose weight (and is a potential hazard when driving in poor conditions or for long distances).
The Snappy Start 120AH leisure battery weighs 24.5 kg which is a good balance between lightweight, less powerful models (starting from about 15 kg) and huge commercial batteries that can weigh up to hundreds of kilos.
It's also worth considering how you will transport your 120AH leisure battery - most people can manage a battery of less than 25 kg, whereas anything heavier can be tricky to manoeuvre.
Many people order a leisure battery 120AH based on power output and ease of use, but forget that dimensions are also important!
Your battery storage space in your camper will have a maximum width, depth and height, and it can be very frustrating to order a leisure battery only to find out on the day before your trip it doesn't fit into the bracket.
Our 120AH leisure battery models measure 35.3 x 17.5 x 17.5 cm (length x depth x height).
Verify the height of the storage space and the length and width since you need enough room to attach clips and cables.
Leisure battery 120AH models are often referred to as deep cycling. The number of cycles is the number of times you can recharge the same unit and have it work as usual.
Each 120AH leisure battery has a different cycle count, and a low rating will mean that after a few 100% recharges, your battery stops holding power correctly.
Snappy Start 120 Amp leisure battery models have a cycle rated 200+, so they are designed for longer-term use.
If you would like further information about 120 amp leisure battery ratings, please visit the Snappy Start catalogue or get in touch if you require help selecting the right battery for you.
Next, we'll run through a few of the questions we receive about picking the right 120AH leisure battery.
It's never wise to buy a 120 Amp leisure battery without checking if it comes with a warranty.
Decent batteries can last for several years if properly maintained and recharged, and we provide a four-year professional guarantee with every battery model within our catalogue.
Leisure batteries come in many different constructions and models, with lead-acid batteries as a common and more affordable option.
We opt for sealed, maintenance-free 120AH leisure battery units because they are safer, easier to look after, and don't carry any risk hazard associated with acid leakage.
A 120AH leisure battery with advanced vibration resistance means that your battery will last longer and be less susceptible to shocks.
Imagine driving down bumpy roads, hitting a pothole and having your battery dislodge from its bracket - that's a lot of weight to have ricocheting around inside a camper and a major safety hazard!
Vibration resistance is also important for functionality and means that a few knocks won't damage your battery or impact how well it works.
|Battery Code||120 Leisure Battery|
|Technology||WET (Lead Acid)|
|No. of Cycles||200+|
|Power Capacity (c20)||120 ah|
|Capacity (c100)||133 ah|
|CCA (cold cranking amps)||900 cca|
|Weight (kg)||24.5 kg|
|Length (mm)||353 mm|
|Width (mm)||175 mm|
|Height (mm)||175 mm|
|Recommended Charge Rate (AH)||7.4 ah|
|Terminal Layout||(+) on right side|