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* Actual delivery times may vary due to holidays, weather conditions, or customs delays.
Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.
Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.
1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471
Feature:
1. Boost + charge control + Lithium battery protection + UPS uninterrupted power supply, multi-function integration, easy to use, no longer trouble the intricate flying lines between the various function boards.
2. The switch can be used as a low power DC mobile power supply. It can be used as a UPS power supply and can be used as a lithium battery charger.
3. Battery box design, easy to remove and replace the battery.
4. Separate charge port, wiring can be placed in any position.
Advantage:
The power supply charges the battery one way while the other way turns on the boost output.
When the power supply is turned on, the battery can be removed at will.
When the battery is powered, the power supply can also be disconnected at any time.
If the power supply or the battery is powered at any way, it can be keep the load continuously and continuously work (UPS function).
When the UPS function is not used, charging the battery can also be used as an ordinary portable power source.
The charging power supply is connected so that the load operation does not occupy the charging current of the battery. The power supply can rapidly charge the battery while being loaded.
Note:
Charging 3/4 pin should be connected to DC5V charging, charging current 500mA max, requires that the maximum power of the charging power supply used is at least 3W higher than the load power consumption, that is, the power supply can also have enough current to the battery while carrying charging.
For example: If the load is ≤ 2W, 5V1A charging power supply can be used.
The SW switch pin can be connected in series to control the boost output circuit to turn on and off. If the switch function is not required, please short connect the SW pin to make the boost path normally open.
Output positive and negative poles 5/6 pin to connect the load, the load normal state recommends ≤ 5W, transient ≤ 8W.
when 5V output, normal load current recommend ≤ 1A, when output 6V ≤800mA, output 9V ≤500mA, output 12V ≤400mA
Lithium battery overcharge protection, over discharge protection, current limiting protection, over temperature protection, output short circuit protection. (If short-circuited due to the fault operation, enter the protection state will not be output, and the connection with 5V charging will automatically activate the reoutput.
Precautions:
There are mos and other components on the board, which can be easily damaged by the soldering iron or by static electricity. Make sure that the soldering iron used is grounded (and the grounding wire is conductive). It is best to wear anti-static gloves.
Package includes:
1 x 18650 Lithium Battery Boost Module (the battery does not includes)
This thing is actually a UPS. Will maintain output with no interruption when either the battery or the input 5V is disconnected.
Charges batteries to 4.1V steady (using protected 18650 cells, always good to be safe). Have not finished testing discharge level yet.
This thing is actually a UPS. Will maintain output with no interruption when either the battery or the input 5V is disconnected.
Charges batteries to 4.1V steady (using protected 18650 cells, always good to be safe). Have not finished testing discharge level yet.
This thing is actually a UPS. Will maintain output with no interruption when either the battery or the input 5V is disconnected.
Charges batteries to 4.1V steady (using protected 18650 cells, always good to be safe). Have not finished testing discharge level yet.
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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A part of the QA has been auto-translated.
0
Q:
el interruptor se pone en SW
para que sirve los contactos KEY?
el interruptor se pone en SW
para que sirve los contactos KEY?
To select the output voltage u need to change some resistors. 1502 and 1103 for 5V | 1202 and 1103 for 6V | 1502 and 2103 for 9V | 1502 and 2873 for 12V |I even made a picture showing all this, but i cant send it in an review because i dont bought it.If someone wants to review this pic i can send the link.
To select the output voltage u need to change some resistors.
1502 and 1103 for 5V
1202 and 1103 for 6V
1502 and 2103 for 9V
1502 and 2873 for 12V I even made a picture showing all this, but i cant send it in an review because i dont bought it.
If someone wants to review this pic i can send the link.
Answered by MrJack on 05/02/2022Helpful (0)
0
Q:
The width and length are well indicated but what is the height (thickness) of this support?
La largeur et longueur sont bien indiquées mais quelle est la hauteur (épaisseur) de ce support ?
I honestly think it's an automatic interpretation of a Chinese word that means both "key" and something like "sight" - meaning "monitor" or "measure" perhaps? An output for oscilloscope measurements maybe? But I would really like to know for sure!
I honestly think it's an automatic interpretation of a Chinese word that means both "key" and something like "sight" - meaning "monitor" or "measure" perhaps? An output for oscilloscope measurements maybe? But I would really like to know for sure!
You connect to the out+ and out- pads. You can connect a switch to the two SW pads to turn the output on or off, or just bridge them to permanently enable the output. The output as supplied is always 5V but id hackable; do a google search for hoe to do this.
You connect to the out+ and out- pads. You can connect a switch to the two SW pads to turn the output on or off, or just bridge them to permanently enable the output. The output as supplied is always 5V but id hackable; do a google search for hoe to do this.
Answered by DrMichael on 05/01/2023Helpful (0)
0
Q:
what is the switch foot for? A switch, yeah, but what does the switch DO?
what is the switch foot for? A switch, yeah, but what does the switch DO?