How to Install a Lithium Battery into a Motorhome, Caravan, or Van
Installing a lithium battery in your motorhome, caravan, or van can significantly improve your power supply, providing reliable energy for your adventures. This step-by-step guide will walk you through the installation process. (This guide is also in our user manuals)
by
May 30, 2024
10 min read
If any existing acid/water from a lead-acid battery is present in the battery box/tray, please ensure you wear gloves and remove before installing the new battery. Battery acid (sulphuric) can be soaked up with disposable tissue and washed away with plenty of plain water. Corrosion can be nullified with boiling water. Allow the area to dry before installing your new battery.
1. If replacing your old battery (if freshly installing, skip to step 2):
Switch off any connected devices
If a solar charger is present, either switch off or pull the fuse. If this is not possible, please remember that your positive connection will remain live, so avoid contacting it with any metalwork. We recommend covering the positive connection with tape or a rubber glove so it does not short out
Disconnect your existing battery - negative off first, then positive
2. Ensure your battery box/bay is free from any dirt, corrosion and sharp protrusions
3. Double check your cables and terminals to ensure they are clean from corrosion, and split/crack free
4. Ensure the battery location has some ventilation/airflow
Lithium batteries don't need much airflow as they don't vent gases, but we still recommend keeping some space around them as they will get warm when charged and discharged heavily.
5. Install your new TITAN Lithium battery
Positive on first, then negative last
If using round terminal connections, ensure the vehicle-side terminal ‘collar’ is pushed all the way down the round battery terminal - round battery terminals are tapered and are larger at the base; terminals installed too high will result in a loose terminal and potential over-tightening
If using eyelets/bolt connections, please ensure you exclusively use the bolts supplied with your battery, and not existing bolts - any deviation in size/spec can lead to connection issues
Bolts should be tightened to a maximum of 12nm (8.85ft-lb) - you should not be able to move the tightened terminal/cables with your hand
6. Ensure the battery has any base clamps/strapping re-secured
It may be easier to re-secure before attaching terminals depending on how the cables are situated
It is important that your battery does not move freely if connected within a vehicle or vessel
7. Switch on connected devices & test to ensure everything is working
When connecting terminals, some devices may demand a current and create a spark when re-attaching terminals, even if switched off. This spike in current may blow connected fuses; if you have no power after connecting, please check your fuses
Remember to fully charge your new battery before use
You may find that connecting to the battery will help with any setup changes. You can find our app here: