Battery Help Lithium

[HH30344]

BATTERY HELP
my group 31 batt does not last. Three or four days sitting kills battery to below 9 volts. Time for new.

I am looking at LiFiP04 battery

100 or 120ah form either battle born batteries (USA) or Kings (AUS). Does anyone have a Lith Batt as there AUX batt AND KEEP IT IN THE ENGINE COMPARTMENT?

Need advice Many say not to go above 130 degrees with batt - or the BMS kicks in.

My red arc dc/dc is under hood too and does great. They said 170 max heat. But so far works great.

Will also take any advice on the battery itself if you think a particular batt is better. Especially for heat

This is my daily driver too BTW - 2022 Toy 4Runner.

 

[Sparksalot]

@Wanderlost did a video a while back about lithium batteries underhood. The bottom line is that’s it’s very bad juju.

Additionally, I don’t believe lithium is intended as a starting battery.

 

[grubworm]

a lot of the lithium battery chargers wont allow charging at around 120 degrees and long exposure to heat will shorten the life.
i used to not hear of lithium for starting because they werent designed for the quick dump of amps it takes to spin a starter...BUT there are dual purpose lithium batteries on the market now, i guess they can be used for starting. id do more research to make sure though...

DL+ 12V 60Ah Dual Purpose 1000CCA LiFePO4 Battery

Twoin pack, 12V 60Ah multi propose 1000 CCA lithium starting dakota battery plus for marine engine, automotive, deep cycle use. 8x longer 11year lifetime.

dakotalithium.com

 

[M Rose]

@Wanderlost did a video a while back about lithium batteries underhood. The bottom line is that’s it’s very bad juju.

Additionally, I don’t believe lithium is intended as a starting battery.

Dakota Lithium offers a starting battery… it’s expensive… and still not recommend for modern under hood applications.

DL+ 12V 135Ah Dual Purpose 1000CCA LiFePO4 Battery

DL+ 12v 135Ah LiFePO4 Golf Cart & 1000CCA Automotive Battery. Marine & Automotive Compatibility. 135 Amp Hours of deep cycle Dakota Lithium performance.

dakotalithium.com

 

[uncompromise]

Late to the party, but was searching for an under-hood lithium battery available in Europe. In short, there are batteries that are specifically rated for under-hood use available in Australia. So they are available, but I’ve not been able to find them anywhere else.

Under-bonnet Lithium Batteries | INVICTA Hybrid Lithium

Invicta lithium batteries are designed to the highest specifications to produce a under-bonnet lithium battery you can trust.

www.invictalithium.com.au

iTECH120X PRO (New 2025 Model) LiFePO4 120Ah Lithium Deep Cycle Battery with Bluetooth

Brand New iTECH120X PRO 120Ah Lithium Battery: lightweight, 100% usable capacity with Bluetooth monitoring, IP67 waterproof rating & 5 year warranty.

itechworld.com.au