When I plug my laptop into it, and then play music through my laptop I get really bad cyclical sound ... is there a way to filter this out?

I'm going with audio engineer dude on this one. But really what I wanted to address, is people saying it's due to it being a modified sine wave. That's not your issue. Laptops don't run on AC, they run DC, so first off sine type isn't an issue. Second, anything not straight off the main grid or a generator is a modified sine. There are better and worse, but if you're going DC to AC, it's modified sine. In all honesty though, if you're running a laptop off an inverter, the best thing would be to see if you can adapt straight from your original source to a laptop charger, bypassing the whole AC conversion.

The descriptions and photos here show TWO(2) AC Outlets, but some reviews say it only has ONE(1). Which is it?

The unit that I received has 2 110v outlets and 2 usb ports. The unit was used on a recent trip to Texas and worked flawlessly.

Will this drain the car battery and does the car need to be running to use this?

It depends. If you have an ICE car with an internal combustion engine and a small "starter/ignition" battery, you won't want to run anything more than a few hours, maybe less if your battery is older or you've run it to dead a couple of times already. But for my electric car, I've used a small inverter in the accessory jack to power small things for up to a week, and hardly noticed it.

Will this work with/charge a 15 inch Macbook Pro?

Yes it works very well, and runs quietly.

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BESTEK インバーター 200W 修正正弦波 DC12VをAC100Vに変換シガーソケット接続 USB-C PD30W 急速充電ノートPC・家電対応車中泊・災害停電対策 6つ保護機能車載用インバーター MRI2010CU (レッド, 300W) | 4.8A デュアルUSB高速充電ポート、車載充電器シガレットライターアダプター電話、ノートパソコン用ロードトリップ用 - アルミニウムハウジング

BESTEK インバーター 200W 修正正弦波 DC12VをAC100Vに変換シガーソケット接続 USB-C PD30W 急速充電ノートPC・家電対応車中泊・災害停電対策 6つ保護機能車載用インバーター MRI2010CU (レッド, 300W) | 4.8A デュアルUSB高速充電ポート、車載充電器シガレットライターアダプター電話、ノートパソコン用ロードトリップ用 - アルミニウムハウジング

Product ID: 740180015

Details

ブランド
BESTEK
モデル名
MRI3011BU
ワット数
300 W
製品の推奨用途
電源
DC。

⚡300W continuous power

🔌2 AC outlets + 2 USB ports

🛡️6-layer multi-protection

₨1608

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up your journey with BESTEK’s sleek, safe, and smart inverter!

COMPACT YET MIGHTY - iPhone-sized aluminum housing fits anywhere, perfect for camping, road trips, and emergency power.
DUAL AC USB PORTS - Charge laptops, phones, and tablets simultaneously with 2 AC outlets and 4.8A dual USB fast charging.
TRUSTED SUPPORTED - ETL certified with 5-year warranty and 24/7 expert customer support for peace of mind.
POWER YOUR ROAD ADVENTURES - 300W continuous & 700W peak power to keep all your devices running smoothly on the go.
BUILT FOR SAFETY DURABILITY - 6 protective features including overheat, short circuit, and voltage safeguards with aerospace-grade aluminum casing.

The BESTEK 300W power inverter converts 12V DC to 110V AC with a modified sine wave output, featuring dual AC outlets and dual USB ports (4.8A total) for fast charging. Its compact aluminum design includes 6 safety protections and a smart cooling fan, making it ideal for road trips, camping, and emergency backup. Compatible with 11-17V vehicles including Tesla, it comes ETL certified with a 5-year warranty and 24/7 customer support.

Specifications

ASIN	B004MDXS0U
Amazon 売れ筋ランキング	車＆バイク - 288,375位 ( 車＆バイクの売れ筋ランキングを見る ) 車載用インバーター・コンバーター - 561位
GTIN (Global Trade Identification Number)	06950334926207
おすすめ度	4.5 5つ星のうち4.5 (32,540) var
インバータ容量ボルトアンペア	25
カラー	レッド
コンセント数	2
ピーク出力電力ワット	700
メーカー名	BESTEK
メーカー型番	MRI3011BU
ユニット数	1.0 個
ワット数	300 W
入力電圧	12 ボルト
出力電圧	12 ボルト
同梱商品	1 x 300W Power Inverter1 x User Manual
周波数	60 Hz
品目寸法（L x W x H）	12.2長さ x 7.9幅 x 4.8高さ cm
商品の推奨用途	携帯電話、ノートパソコン、カメラなどに充電。SUV、MPV、RV、Seadan、Trunk、Teslaなどの11~17Vの車両に対応。
商品の重量	0.9 ポンド
型番	MRI3011BU
適合するエネルギー仕様1	ETL
電圧	12 ボルト
電気出力波形	修正正弦波
電源のタイプ	DC。
音圧レベル	700 Watts

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