AST-45 H5 H5
AST-45 H5 H5 - second view
Sodium-ion starter

AST-45 H5

Sodium-ion starter battery for H5 class boats and campers — cold-weather cranking without the lead-acid weight.

Configuration45 Ah · 12 V class · H5
Typical fitmentH5
ChemistrySodium-ion
Battery managementIntegrated BMS, cell balancing and protection
Cycle life3,500+ cycles
Cold cranking (CCA)720 A
Full specificationAvailable on request
CertificationEMC tested · RoHS · UN38.3 transport tested

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Model mapping and dimensional drawings are confirmed at quotation.

Key features.

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Sodium-ion chemistry

Designed for marine and RV duty.

⚓

Drop-in footprint for H5 / H6 battery

Built into the pack.

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Integrated BMS with over-current prote

Built into the pack.

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Deep discharge tolerance for house loa

Built into the pack.

Bluetooth, reserve capacity and force start.

Standard on every AST starter battery, sodium-ion and LiFePO4 alike.

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Bluetooth BMS

State of charge, voltage, current and temperature in the app.

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Reserve you can set

The BMS holds back a minimum remaining capacity for starting.

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Force-start switch

One switch in the app releases that reserve to the starter motor.

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Still starts after a year

Low self-discharge keeps the reserve through a long idle season.

Inside the AST-45.

Cell layout, protection board, fusing and thermal path — shown on the real unit, not a render.

Internal structure

Slot 05 · link pending

Need the AST-45 datasheet?

Specification sheet and certificate pack are supplied with quotations.

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