12V · emergency
Disaster Relief LiFePO4: size the load, then the voltage
People land on a Disaster Relief page because the last bank died early or would not charge. Disaster relief power. We start from load, charger, and temperature — then cells.
CAGE 93CZ2
UN38.3 transport docs on request. DUNS 109774429. We do not publish a star rating we cannot source.
This rail: House banks, Group 24/27/31 drop-ins, small inverters
Typical size: Typical 100–400Ah; parallel for more
What actually fails
- A “backup” that lasts 45 minutes is a nightlight. Well pumps and medical devices need hours, written down.
How we quote it
- List watts and hours. Then pick voltage so the inverter is not a toy.
12V on this URL
Sensible up to roughly 2 kW continuous inverter load. After that, step up voltage or parallel with thicker cable.
If you delete the voltage, the Disaster Relief constraints above should still make sense. That is the point.
What to spec for Disaster Relief
Disaster relief power Test the transfer switch on a Saturday, not during the outage. The pack is the easy part. Voltage overlay on this URL is only there because the equipment rail is real — delete the voltage and the duty-cycle advice should still read as a sentence. Sensible up to roughly 2 kW continuous inverter load. After that, step up voltage or parallel with thicker cable.
12V catalog SKUs
12V 100AH Lithium Ion Battery
100AH
$1,499 listed
12V 10A Lithium Battery Charger
10A
$299 listed
12 Volt Lithium Batteries
12V
$999 listed
Prices are catalog list from our product file. Custom packs are quoted.
Spec note
Test the transfer switch on a Saturday, not during the outage. The pack is the easy part.
Questions we actually get
How do I size a Disaster Relief lithium bank?
Start from the load you cannot lose. Everything else is optional capacity. We will convert that into Ah at the voltage you already have.
Can I keep my existing charger?
If it can hold a lithium charge curve (higher absorb, little or no float), maybe. Send the charger model. A lead-acid-only charger is how people cook packs.
What paperwork can you send?
UN38.3 is the usual transport packet. CAGE 93CZ2 and DUNS 109774429 for government bids. Other marks depend on the SKU — we send PDFs we actually have.
Customer marks shown as published by ChargeX. Ask sales for program context; this page does not invent a contract number.