The original build record describes a 1,600-Ah Lossigy battery bank and asks whether Phoenix heat justifies routing the van’s air conditioning through the battery compartment first. That decision needs the installed battery’s operating limits and actual temperature measurements.
The Battery Identified By The Original Link
The purchase link resolves to ASIN B09BVP6225, matching Lossigy’s 12V 400Ah product family.
The original March 2024 article recorded a $4,196 purchase cost for the bank.
Charging And Discharge Have Different Limits
| Specification | Listed Value |
|---|---|
| Nominal Voltage And Capacity | 12.8V / 400Ah / 5,120Wh |
| BMS And Continuous Current | 250A |
| Charging Voltage | 14.2–14.6V |
| Maximum Charging Temperature | 113°F / 45°C |
| Discharge Temperature | −4°F to 140°F / −20°C to 60°C |
| Storage Temperature | 10°F to 122°F |
| Terminals | M8 |
Lossigy’s Product Specifications.
Measure The Battery, Not Just The Weather
Compare battery temperature during charging, discharge and storage separately. The outdoor temperature and the temperature inside the battery compartment are separate measurements.
Cooling Needs Evidence From This Installation
The original account discusses Phoenix temperatures and air-conditioning comfort while planning the van’s battery compartment.
For the two Lossigy 400Ah batteries in my van and how storage fits with charging and loads, see my battery-storage page.
What Still Needs Confirmation
- The installed model revision and original manufacturer manual.
- Charging, discharge and storage limits for that revision.
- BMS temperature sensor locations, cutoff and restart thresholds, and cold-charging protection.
- Measured battery temperatures under the van’s actual operating conditions.
The earlier chemistry-wide heat range and cooling graphics are preserved in the private source archive rather than used as technical evidence here.