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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
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Description
Sealey RoadStartï Emergency Jump Starter 12V 2L 4-Cylinder RS1BComposite case with integral battery clamp storage and carry handle. Suitable for starting vehicles with 4 cylinder petrol or diesel engines up to 2L. Front panel displays internal battery charge level and includes an integral LED work light. Reverse polarity and short circuit protection with audible warning. Mains charger with automatic power cut off prevents damage to battery whilst charging. Inbuilt MOSFET circuit protection. Fitted with two 12V
Composite case with integral battery clamp storage and carry handle. Suitable for starting vehicles with 4-cylinder petrol or diesel engines up to 2L. Front panel displays internal battery charge level and includes an integral LED work light. Reverse polarity and short circuit protection with audible warning. Mains charger with automatic power cut-off prevents damage to battery whilst charging. Inbuilt MOSFET circuit protection. Fitted with two 12V power sockets that will accept any 12V device with a vehicle accessory socket plug and one 5V 2.4A USB output.Cable & Clamp Length: 0.6m.
Delivers up to 1100 Peak Amps of initial starting power.
Composite case with integral battery clamp storage and carry handle.
Suitable for starting vehicles with 4-cylinder petrol or diesel engines up to 2L.
Front panel displays internal battery charge level and includes an integral LED work light.
Reverse polarity and short circuit protection with audible warning.
Mains charger with automatic power cut-off prevents damage to battery whilst charging.
Inbuilt MOSFET circuit protection.
Fitted with two 12V power sockets that will accept any 12V device with a vehicle accessory socket plug.
Single 5V 2.4A USB output.
Supplied with mains charger.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Perfect!
Size: 3 kg - Normal Size
It works perfect. The product looks strong and looks so nice.
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Mostly Great, But With One Problem
Size: 3 kg - Normal Size
Overall, this is a good scale and I do like it. However, it has one flaw that I'll mention later. First, the things I like. This is a nice looking scale. I like the design and the different colored displays for time and weights. The stainless steel on black is a classic look and very stylish in my opinion. The size is just right for brewing with French press or Chemex style brewers. It has a lot of plastic, but that is how all scales of this size are, especially in this price range. Having the ratio displayed is really nice. I use that about as much as looking at the grams during a pour over. I've also been using the automatic timing feature. I didn't think I'd like that, but it is actually quite useful. I've been using it for a month off of the first charge so I think that the battery life is good. Its also nice to be able to turn off the sound so I don't have to listen to beeping early in the morning when the rest of the family is sleeping. Being able to change the units of measure is great. I've weighed coffee, baking ingredients and even small packages prior to mailing them. It handles anything under 6 lbs. The display is sensitive and reads quickly. Which leads me to the one negative about this thing. When it is weighing room temperature items like beans or an empty brewer, its accurate and gives a steady reading. However, when you start introducing hot items (like brewing coffee which is what this is for) it starts to drop weight by 0.1g every 10 to 20 seconds. Even with the included silicone cover. I've added a cork trivet and another silicone pad under the brewer which didn't seem to help much. Eventually they warm up and the issue starts. Any raise in temp causes the unit to start lowering the weight as previously described. That's why I only gave it four stars. While this is annoying to see, it doesn't seem to mess with the overall brewing ratio or mess up my coffee brewing at all. By the time its doing this, I've usually made my pours and am in the 4 to 5 minute steeping period prior to finishing and decanting. At that point, I'm really only using the timer function anyway. Therefore, I didn't give it a lower rating since I like everything else about it and its not very expensive. All things considered, I think its a good value for the money and gets the job done.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Accurate and fits Breville bambino drip tray!
Size: 2 kg - Mini Size
Great mini scale! Fits smaller machine drip trays with out over hang. Very accurate!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Must have on kitchen
Size: 2 kg - Mini Size
It's exactly as described. Works great so far! I bought to make matcha 🍵 when measuring is quite important for the recipe, but also used for other measurements like yeast salt etc. Really great to have silicone mat for hot products, or just hot water that I use for matcha.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Compact and accurate scale for Espresso!
Size: 2 kg - Mini Size
Great scale for the money.
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Reviewed in the United States on March 22, 2026