What settings does my shunt require to read my battery correctly?

Please refer to the screenshot above. The only thing that will vary is the battery capacity.

Can I straight swap my AGM battery for a lithium battery?

This ultimately comes down to your charger because AGM and lithium batteries operate on different charging cycles and have different chemistries. Lithium batteries are lighter, more efficient and have a longer lifespan, but requires more precise charging to avoid overcharging damage and avoid potential safety issues.

You will need to check your existing chargers and equipment manuals for support of lithium batteries before buying and swapping the AGM batteries with lithium batteries. The equipment you should check for lithium support may include but not limited to: your DC-DC charger, solar charge controller, and 240v charger.

How do I restart a flat lithium battery?

There are 2 main methods for restarting a lithium battery that was run flat. The 1st method is the simplest and needs only a lithium compatible 240v charger with a ‘power supply’ mode to wake the battery up and continue charging it. Connect the battery to the 240v charger with the mode set to ‘power supply’ and then let it charge.

The 2nd method can restart a flat lithium battery without a 240v charger; instead requiring:
– Another 12v battery with similar voltage and capacity as your Custom Lithium battery.
– Jumper leads with positive and negative clamps.
– A vehicle or power source with a DC-DC charger.

The steps are as follows:
1. Position the two batteries next to each other, ensuring that the positive and negative terminals of each battery are not touching.
2. Connect the positive clamp of the jumper leads to the positive terminal of both batteries.
3. Connect the negative clamp of the jumper leads to the negative terminal of both battery.
4. Turn on the vehicle or power source with the DCDC charger to start charging your battery.
5. Once you’ve confirmed the DCDC is charging, please disconnect the the jumper leads starting with the negative.

If you have left your battery in a discharged state for a period of time and this process is unsuccessful, you will need to send it back to Custom Lithium for service.

It is highly recommended to charge the battery to it’s full capacity after a flat reset.

What size DCDC charger would I need?

All the DC-DC chargers we offer are fully compatible with our Custom Lithium batteries. Some chargers come with MPPT solar regulators built-in, while others are solely DC-DC chargers.

The choice between smaller and larger models of DCDC chargers depends on the desired charging speed. For larger batteries, we recommend selecting a larger DC-DC charger to recharge the battery more efficiently.

All of our Custom Lithium batteries, including our smaller sizes, are capable of using a powerful 40A charger. Using a smaller DCDC charger like a 25A or 30A also works but it will take longer for your battery to charge.

If you are purchasing a charger from a 3rd party, or using an existing one then ensure the lithium DCDC charger supports settings of 13.5 volts absorption/float charge, and a bulk charge of 14.2 volts.

What 12v Charge Voltage/Profile are required?

If your Charger has a LifeP04 setting available, we recommended selecting this. If it does not the recommended settings will be:
Charge 14.2v – 14.6v
Float/Absorption 13.4v – 13.6v
Disconnect 10.5v

If your charger (Such as a Victron 12-12/30 has a LIFP04 Setting available, please select this option.

What 24v Charge Voltage/Profile are required?

Bulk Charge: 200a Max, 100a Constant
Absorption: 28.4v to 29.2v
Float: 26.8v – 27.2v
Disconnect: 22v – 23v

If your charger (Such as a Victron) has a LIFP04 Setting available, please select this option.

What orientation can my battery be mounted?

Ultra slims – The ultra slim can be mounted in any configuration

Compact, Slim and RV – These models of battery can be mounted on their base, side or the non terminal end (Ie: The terminals can not be closest to the floor)

Vehicle Kit – Only as designed

Why is my battery held in “Dangerous goods”?

As Lithium batteries are classified as dangerous goods, it is not uncommon for our freight provided to hold the package in a location until the next available dangerous goods truck comes to the depot. Unfortunately, they may not update the tracking details and your package may arrive at any time.
Worse case scenario, the battery may be held up to 7 days.

What Voltage is suggested for Low Voltage Cutoff?

We recommend to set your low voltage cutoff to 12 volts. This is approximately 5% remaining on a lithium battery.

Do custom lithium batteries comply with AS/NZS 3001 standards?

We have a set of guidelines to help you make your installation compliant. Please contact us for more information.

Do Custom Lithium batteries carry IEC 62619 as per the recommendation in AS/NZS 3001?

Yes, the components we use to construct our high quality lithium batteries are IEC 62619 certified.

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