24V · marine
Specifying a Boat pack without the usual template paragraph
People land on a Boat page because the last bank died early or would not charge. Marine batteries for boats. 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 We do not publish a star rating we cannot source.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: Trolling motors, mid-size solar, light commercial
Typical size: Typical 100–400Ah
What actually fails
- A house bank that sags when the inverter kicks the microwave is how weekends get cut short.
- Weight in the stern changes how the boat sits. Lead is a trim problem as much as an electrical one.
How we quote it
- Specify sealed terminals and a case you can actually rinse. IP-rated hardware is the marine line item, not a logo.
- Size usable kWh at 80% depth of discharge, not the sticker Ah on a wet cell you would never empty.
24V on this URL
Halves current versus 12V for the same watts. Confirm the motor or inverter is actually 24V before you order.
If you delete the voltage, the Boat constraints above should still make sense. That is the point.
What to spec for Boat
Marine batteries for boats If the locker floods, the BMS board is the part that dies first. Ask for conformal coat and sealed glands, not just “marine grade” on a brochure. 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. Halves current versus 12V for the same watts. Confirm the motor or inverter is actually 24V before you order.
24V catalog SKUs
24V 228AH Lithium Iron Phosphate Battery
228AH
$2,899 listed
24V 20A Dual Bank Charger
20A
$549 listed
12/24V 2 Bank 6 Amp Industrial Charger
24V
$999 listed
Prices are catalog list from our product file. Custom packs are quoted.
Spec note
If the locker floods, the BMS board is the part that dies first. Ask for conformal coat and sealed glands, not just “marine grade” on a brochure.
Questions we actually get
How do I size a Boat lithium bank?
Watts × hours, then divide by voltage and by 0.8 if you want 80% depth of discharge. Add the worst ambient. That beats any calculator widget.
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.