Which under-seat lithium battery should I choose for my converted van electrical system?

Unlike a lead-acid battery, a lithium battery is lighter and more compact (for equivalent power) offering you many advantages but above all better energy density!

Furthermore, this 12.8V 100Ah lithium battery has the advantage of fitting under a seat in your converted van, its dimensions maximise your electrical installation!

This lithium battery doesn't waste any space. We know that every storage space counts in a converted vehicle. The integrated BMS (battery management system) monitors and protects your 100Ah under-seat battery from short circuits, overcharging, discharging…

Furthermore, it is connected to a Bluetooth system: once you have installed the Ultimatron France app on your smartphone or tablet, you can monitor its various indicators in real time.

Download the app:

For Android: https://play.google.com/store/apps/details?id=com.zhupi.ultimatron

For iOS (iPhone or iPad): https://apps.apple.com/fr/app/ultimatronfrance/id1546832412

Power your limitless adventures with a powerful and compact lithium battery!

Featuring lithium iron phosphate technology, LiFePO4, this Ultimatron 12.8V 100Ah battery guarantees unrivalled efficiency and long-term durability. It will accompany you on all your van trips!

Depending on your electrical installation, the Ultimatron 100Ah under-seat lithium battery is compatible for series and/or parallel connection. And it has an operating temperature range of -20°C to 60°C.

What are you waiting for to be energy independent in your converted van?

Technical specifications of the Ultimatron 100Ah under-seat lithium battery

• Ultimatron reference: ULS-12-100-PRO-LN3 (now renamed: ULS-12-100-LN3)
• Recommended charging current: 20A (50A maximum)
• Recommended charging voltage 14.6V
• Maximum continuous discharge current: 100A [Peak at 300A 200~500ms]
• Cut-off voltage: 10V [Reconnection > 11.2V]
• Number of cycles: 6000 Cycles at 80% DoD
• Self-discharge: < 3% per month
• Protection rating: IP65
• Lightweight: 10.7 kg
• Dimensions (LxWxH): 379x175x189 mm
• M8 terminals
• Operating temperature:
• Discharge: -20° to 75°C
• Charging: 0° to 50°C
• Storage: -5° to 35°C
• Manufacturer's warranty: 5 years