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Amp-Tech AT645 SLI/AGM General Purpose Battery (6V, 4.5Ah)
Amp-Tech AT645 SLI/AGM General Purpose Battery (6V, 4.5Ah)
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Technical Specifications
| Specification | Details |
|---|---|
| Model | Amp-Tech AT645 |
| Voltage | 6V |
| Capacity | 4.5 Ah (20 HR) |
| Dimensions (LWH) | 70 x 47 x 100 mm |
| Terminal Type | T1 |
The Amp-Tech AT645 SLI/AGM General Purpose Battery delivers a reliable, compact 6V power solution expertly engineered for a diverse range of Australian domestic, commercial, and backup applications. Utilising sophisticated Valve Regulated Lead Acid (VRLA) technology paired with a high-quality Absorbent Glass Mat (AGM) separator, this completely sealed unit provides a safe, leak-proof electrical supply. It serves as a dependable powerhouse for emergency lighting, security systems, medical equipment, and toy ride-on vehicles, guaranteeing long-lasting efficiency and robust structural stamina without demanding tedious ongoing upkeep.
Perfect for users who demand:
- ✓ A high-quality original equipment specification match for backup alarms, emergency fixtures, and toy applications
- ✓ Total indoor and enclosure safety with a factory-sealed casing that prevents messy acid leaks or vapours
- ✓ Superior charge retention capable of sitting inactive for long standby stretches without going flat
Key Features & Benefits
Oxygen Recombination Tech
- • Internal gas management loops actively recombine internal vapours to preserve fluid levels
- • Delivers a completely maintenance-free layout that eliminates internal hydration checks
- • True "install and forget" operation allows for clean horizontal or vertical hardware placement
Advanced Grid Alloys
- • Custom PbCaSnAl alloy composition drastically lowers overall outgassing under operational loads
- • High-purity raw materials ensure a remarkably low self-discharge profile during storage
- • Extends the active seasonal storage shelf life to safeguard against early cell damage
High-Calibre AGM Separator
- • Premium absorbed glass mat layers optimise plate contact to maintain electrical stability
- • Proactively isolates internal grids to successfully prevent destructive micro short circuits
- • Maximises product durability and deep discharge cycle recovery over a long working service life
Reinforced ABS Armour
- • Thick-walled acrylonitrile butadiene styrene (ABS) compound increases container strength
- • Resists physical impacts, thermal distortions, and mild environmental vibrations
- • Standardised T1 tab terminal pins ensure a rapid, clean connection fitment
Advantages & Considerations
Advantages
- ✓ 1-year replacement warranty backing from a trusted local brand
- ✓ Non-spillable VRLA configuration satisfies safe indoor handling guidelines
- ✓ Extremely compact 47mm width slips into tight equipment cavities seamlessly
- ✓ Flat discharge curve provides a reliable current supply to electronics
Considerations
- • Rated at 6 Volts nominal—unsuitable for standard 12V vehicle electrical systems
- • Not engineered for large engine cranking or high cold cranking amp (CCA) duties
- • Requires a dedicated 6V AGM compatible charger to keep cells healthy when flat
Frequently Asked Questions
What is the lifespan of this battery?
In stationary standby configurations, this high-purity AGM battery typically delivers an operational service life of 3 to 5 years. Total lifecycle duration depends heavily on ambient room temperatures, depths of discharge, and proper charge routine parameters.
Is this battery maintenance-free?
Yes, it is entirely maintenance-free. The advanced oxygen recombination tech prevents electrolyte evaporation, meaning you will never have to top up fluid levels or monitor hydration profiles.
What applications is this battery compatible with?
This general-purpose battery is ideal for emergency exit lighting, domestic or commercial alarm boxes, backup UPS electronics, medical instruments, electronic testing units, and various 6V children's ride-on toys.
How should I store this battery during the off-season?
Store the unit in a cool, dry area out of direct sunlight and extreme seasonal temperature shifts. Ensure it receives a full recharge before storage. Thanks to the high-grade grid alloys, it holds a charge efficiently for long periods when left idle.
What is covered under the warranty?
This battery is backed by a 1-year replacement warranty. This covers operational failures arising directly from internal manufacturing faults, construction oversights, or material defects under regular recommended parameters.
Battery Compatibility Guide
Direct Replacement Models

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