Merlin Battery Guard — Solid-State Low Voltage Disconnect, 12V / 24V, 60A / 100A / 200A
Solid-state, no moving parts: the Battery Guard monitors the source voltage and disconnects the equipment when it falls below the preset level, keeping enough in reserve to start the engine or run critical systems. 12 V / 24 V, 60 A, 100 A or 200 A.
Delivery & shipping
- Free local delivery — Trang · Krabi · Phuket
- Thailand-wide courier, typically 1–3 days
- Worldwide shipping by courier & sea freight
Fair price check
Our price is the manufacturer's home-market RRP — what this gear sells for where it's made. Branded marine equipment in Thailand typically retails 15–90% above that, when prices are published at all. Ours doesn't.
About this product
Battery Guard is the solid-state member of Merlin's flat battery protection family. With no contactor to click or coil to power, it silently isolates the connected equipment when the battery voltage drops below a pre-determined level and reconnects when charging resumes — guaranteeing there is always enough voltage left to start the vehicle or keep critical loads alive. Three current ratings suit anything from a single radio feed to a full auxiliary distribution.
Key features
- Solid-state switching — silent, no contactor wear
- Auto-ranging 12 V / 24 V
- Preset low-voltage disconnect and reconnect
- 60 A, 100 A and 200 A versions
- Protects engine starting and critical loads
Where it fits
Auxiliary circuits on patrol boats, security and utility vehicles, telecom and instrumentation feeds, and anywhere a mechanical contactor is undesirable.
Specifications
| System voltage | 12 V / 24 V |
|---|---|
| Ratings | 60 A (13-1001), 100 A (13-1002), 200 A (13-1003) |
| Switching | Solid state |
| Manufacturer | Merlin Power Ltd, UK |
Choose your version
| Version | Merlin part no. | Price (USD) |
|---|---|---|
| 60 A | 13-1001 | $217.99 |
| 100 A | 13-1002 | $356.99 |
| 200 A | 13-1003 | $413.99 |
Worldwide delivery. Price shown is for the goods; freight to your door anywhere in the world is quoted at cost and invoiced separately. Merlin products are built in the UK — stock items typically dispatch within 1–3 working days, built-to-order kits within 30 days. Thailand customers: we consolidate into our regular air-freight consignments to Trang, Phuket and Bangkok. Not sure which version you need? Email hello@drakemarine.com or WhatsApp +66 99 406 4680 with your battery and charging layout and we will spec it for you.
Why buy Merlin Power from us
Merlin Power has designed and built battery management electronics in the UK for more than 20 years, with the same technology fitted to lifeboats, emergency-service fleets and NATO armoured vehicles. We supply the full Merlin range with system design support: tell us your alternator, battery chemistry and loads and we will specify the right controller, contactors and cabling, and pair it with matching batteries, charging and renewable inputs where it makes sense. Every unit carries Merlin's manufacturer warranty and is supported by Merlin's UK technical team.
Downloads & software
Datasheets, installation manuals, programming guides and the free PC configuration software for programmable units are published on Merlin Power's manuals page and software page. We can also send the relevant PDF with your quote.
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