Battery Charger | Victron | Blue Smart IP65s Charger 12/5 (1)

The Blue Smart IP65s Charger 12/5 (1) is Victron's highest-current slim-format 12V maintenance charger — delivering 5A in the same compact IP65s enclosure as the 12/4, but rated for battery banks up to 50Ah. That 1A extra over the 12/4 model translates to noticeably faster recovery on batteries in the 40–50Ah range: a fully discharged 50Ah battery reaches full charge roughly 25% quicker than with a 4A unit. If you're running a motorcycle with a larger-capacity battery, a small boat with a deep-cycle auxiliary, or maintaining a medium seasonal battery that spends months in storage, the 12/5 gives you the current to keep pace without oversizing the charger.

Key Features

• 5A charge current for batteries up to 50Ah — 25% more current than the IP65s 12/4, with a matching increase in recommended battery capacity
• Slim form factor — 45 x 81 x 182mm — fits where standard IP65 chargers won't, including under motorcycle seats, in boat storage lockers, and tight van compartments
• IP65 weatherproof — fully dust-sealed and water-jet resistant, safe for outdoor and unprotected use year-round
• Built-in Bluetooth Smart — monitor charge state and select battery profile via the VictronConnect app, no cables required
• 7-stage adaptive charge algorithm — profiles the battery state at connection and adjusts current automatically through bulk, absorption, float, and storage stages
• LiFePO4 compatible — supports lithium iron phosphate and lead-acid chemistries, fully selectable via VictronConnect
• Wide input voltage range (180–265V AC) — compatible with Australian 230V mains supply

Technical Specifications

Compatible Battery Types

Supports AGM, Gel, Flooded (wet cell), and LiFePO4 (lithium iron phosphate) batteries. Battery profile is selectable via the VictronConnect app — no dip switches required.

Use Cases

The Blue Smart IP65s Charger 12/5 (1) is the better choice when your battery sits in the 40–50Ah range — the territory where a 4A charger is slightly undersized but a full-size 25A unit is overkill. Motorcycles with larger-capacity batteries, small fishing boats running a 50Ah deep-cycle auxiliary, and camper trailers with a single medium-capacity battery all benefit from the 12/5's balance of compact size and adequate charge rate.

It also excels in seasonal maintenance applications where you need reliable long-term float without the charger running continuously at high current. Connect it at the end of summer, leave it on float and storage mode through winter, and your battery arrives in spring fully conditioned and ready. The slim enclosure fits in places a standard IP65 model simply won't — behind a motorcycle fairing, in a boat's anchor locker, or tucked into a tight cavity in a camper fitout.

App Control & Monitoring

Built-in Bluetooth connects to the free VictronConnect app (iOS and Android). View real-time charge current and voltage, check which charge stage is active, and switch battery profiles between AGM, gel, flooded, and LiFePO4 — all from your phone. Historical charge data is logged in the app for easy troubleshooting or battery health checks.

Why Buy From Revolution Power

Revolution Power is a Queensland-based Victron Energy specialist. We stock the full Blue Smart charger range and can help you select the right model for your battery bank and application. Fast shipping Australia-wide from our Coomera, QLD warehouse. Expert pre-sales advice available by phone or email.

Specifications