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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mastervolt AC Master Inverter (12V / 300W)The Mastervolt AC Master power inverter produces a pure sine wave AC (Alternating Current) output from a DC (Direct Current) input from your boats battery bank. Because of the pure sine wave output, it is safe and reliable and prevents damage to the equipment it is connected to. The inverter is easy to install and features built in protection against over temperature, overload, short circuit and high or low battery voltage. The power inverter is
The Mastervolt AC Master power inverter produces a pure sine wave AC (Alternating Current) output from a DC (Direct Current) input from your boats battery bank. Because of the pure sine wave output, it is safe and reliable and prevents damage to the equipment it is connected to. The inverter is easy to install and features built in protection against over-temperature, overload, short circuit and high or low battery voltage. The power inverter is robustly built and delivers the full output even in demanding conditions. The high frequency technology used eliminates noise typically associated with power inverters, such as buzzing or humming. It also features an automatic power saving mode, meaning a longer run time and less strain on your batteries. General specifications Output voltage: 230 V - 50 Hz (� 0.1%) Output waveform: true sine Nominal battery voltage: 12 V Recommended battery capacity: �� 60 Ah Continuous power at 25 C / 77 F, cos phi 1: 300 W Continuous power at 40 C / 104 F, cos phi 1: 250 W Peak load (5 s): 600 W AC connection: universal Galvanisedanic isolation: yes Efficiency: 90 % Display/read-out: LED display Alarms: 4 alarm modes Dimensions, hxwxd: 210 x 130 x 60mm (8.3 x 5.1 x 2.4 inch) Weight: 1.16 kg (2.6 lb) Compliance: CE, E-mark, ABYC A-31 Technical specifications Technology: high frequency, input & output fully isolated Low battery voltage, switches off at: 10 V, � 0.5 V Low battery voltage, switches on at: 11 V, � 0.5 V High battery voltage, switches off at: 16 V, � 0.5 V High battery voltage, switches on at: 14.5 V, � 0.5 V Max. ripple on DC (battery): 10 % RMS Input current (nominal load): 22.5 A No-load power consumption (ON mode): 0.58 A - 7 W No-load power consumption (energy saving mode): 0.33 A - 4 W Minimal DC fuse (slow blow): 2x 40 A Minimal cable size: 1.5 metre DC cable delivered as standard Harmonic distortion typical: < 6 % Cos phi: all power factors allowed Temperature range (ambient temp.): -20 C to 40 C, derating power > 40 C (-4 F to 104 F) Cooling: natural/forced Switch off at (auto recover after cooling down): 50 C (122 F) Protection degree: IP23, vertical wall mounting Protections: over temperature, over load, short circuit, high/low battery voltage MasterBus compatible: noShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Excellent durability!
Size: Medium Set of 6
I’m impressed with how durable these balls are! The rubber is nice and thick and tough, so my dogs have been unable to rip them apart yet. The spikes help clean their teeth when they chew, which is a plus. After weeks of use, the rubber is not sticky and does not smell. They haven’t lost shape or bounce. The size is perfect for my large shepherd husky dogs, as well as my medium sized Heeler. The loud squeaker in 2 of them has stopped working, which I’m not sad about. As a matter of fact, I’d give 10 stars if all of the squeakers stopped squeaking, lol! The package of 6 balls was a great value!! Will definitely buy again.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
So much fun
Size: Large Set of 3
The dog and my wife love these.
The spines keep your the drool you have to touch to the minimum. Very durable for a dog that loves his toys and destroys them.
Squeak is fun but got a little much. Just stabbed knife into the squeezer hole and silenced them right up - still kinda squeaks, just without all that high pitch goodness.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great for playful dogs
Size: Medium Set of 6
These are great! I unfortunately had to return them because my dog is 45 pounds and they’re too big for her. She couldn’t carry them constantly in her mouth. But the quality, colors, squeak, and bouncy effects are perfect for playful dogs or simply getting your dog to play more. I’m going to see if they have smaller sizes available. Great value too!
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Reviewed in the United States on March 24, 2026
★★★★★ 4
Not for chewers
Size: Medium Set of 6
Not for chewers, but I bet non chewers would like the. Good quality, bounce, fun color and texture. Fun while it lasted, but didn't last long with my 2 year old pitbull. We've been trying to find the replacement to his durable spiky ball that went down a sewage drain. Right now the Chuck-Its are the ones that last (minus just one)
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Reviewed in the United States on October 8, 2025
★★★★★ 5
Almost Indestructible!
Size: Medium Set of 6
My dog LOVES these balls, and it's all about the squeaker (which my husband hates). The size is great and I don't worry about it getting lodged in her throat. They are very durable too. We had one lone ball for YEARS and I forgot it ever squeaked, but it was still in tact. I searched for a replacement because I was so impressed with it. Very happy to have found it. I just ordered some for my son's dog too. The squeaker may eventually come loose, but it's worth the money to buy again!
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Reviewed in the United States on January 9, 2026