YESPER FAQS

COMMON QUESTIONS 

YESPER SPEED

portable car battery charger

 The most desperate thing is that a dead battery leaves you stuck on the roadside, time to put a YESPER JUMP STARTER in your car. Always a YES on the go.

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YESPER SPPEED jump starter uses lithium polymer battery which is safe and lightweight.

YESPER jump starter can also serve as a flashlight as well as a portable charger that can quickly charge your mobile devices, laptops, electronic tools on the road.

The jumper cable features a smart Over-Start Protection function. If you start the vehicle more than 4 times in 2 minutes, the jumper cable will turn on Over-Start Protection: The green and red light will start to blink and the battery clamps will have no output. When you disconnect the jumper cable plug from the jumper starter, the smart Over-Start Protection will reset.

The indicator on the jumper cable will show a steady green light when the battery clamps are correctly connected to the vehicle battery. If a steady red light comes on and the unit is beeping, the connection needs to be reversed.

We recommend to recharge the YESPER SPEED Jump Starter every 3 months.

This unit is equipped with 8 protection features, including over-current protection, over-charge protection, short circuit protection, reverse charge protection, over-discharge protection,reverse polarity protection, over temperature protection, and reverse connection protection. It's extraordinarily safe to use.

Shipping&Refund

car battery charger portable

All taxes and fees are borne by YESPER. Free shipping is available for all products on the YESPER official website.
Not shipping to other countries except the Canada and the U.S. In the event that your order arrives damaged in any way, please email us as soon as possible at cs@yes-per.com with your order number and a photo of the item’s condition. 

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Please note that we will be shipping in 2 business days. And your order will be delivered within 2-9 business days from the date of shipment according to different areas. Multi-warehouse delivery including four cities in the U.S (NJ, CA, GA, IL). Business days do not include weekends or holidays.

Currently, YESPER is only available in US&CA market. Please note that the following areas are not covered by our delivery either: 1. Alaska 2. American Samoa 3. Guam 4. Hawaii 5. Marshall Islands 6. Northern Mariana Islands 7. Palau 8. Puerto Rico 9. Rhode Island 10. U.S. Virgin Islands 11. Armed Forces Americas 12. Armed Forces Europe 13. Armed Forces Pacific

We try to make sure all your items reach you at the same time. Sometimes our products are not always sent together since different shipping options can be used, depending on the product. Once an item has been shipped, you will receive a shipment notification email.

Unfortunately, we cannot change the shipment once the product is en route.

Please contact customer support at cs@yes-per.com.

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