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: +447549870296
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: +447549870296
Specifications:Working voltage: DC5VApplicable battery: suitable for all batteries that meet the requirements of stopping discharge voltage of 2.5~3.5V and starting from 2.8V to 4.2VPower supply interface: two Type-C power supply interfacesSystem language: English Test quantity: 4-way charging and discharging measurementInternal resistance measurement: support, use DC two-wire method to test internal resistanceCharging function: support, automatic cut-off charging when fully charged (lithium iron phosphate battery charging is not supported)Discharge function: support, automatically stop when conditions are met, and the discharge current is not adjustableAutomatic charging and discharging: supported. The battery is fully charged at the end of automatic modeCyclic charging and discharging: supported, 1~9 cycles adjustable (only supported in automatic mode)Status prompt: SupportedCooling mode: fan active coolingOverheat protection: supportStop discharge voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 11 adjustable gearsDischarge current: the maximum current is about 1A, which is not adjustable, and does not support stand-alone modification
Charging voltage: controlled by a special battery charging chip, with a maximum charge of about 1A and a full charge voltage of 4.2VPower-off saving: only save the set parameters, not the measurement dataWeight: 200g
Csere darabként jött, a jelzett időn belül sértetlen állapotban érkezett. Beüzemeltem, megfelelően működik. Mivel 2 db van így egymással is össze tudtam hasonlítani a mérési eredményeket. A feszültségek kis szórással megegyeznek, a belső ellenállások is, azonban ugyan azon celláknál ugyan olyan feltöltöttség mellett teljesen más kapacitásokat mér. Kipróbáltam saját 4 tartójában cserélni az akkumulátorokat, de itt is nagy a szórás. A töltés rövid ciklusú, így ciklikus (2,3,4,...) vizsgálat szerintem felesleges mert amúgy is a legutolsót jegyzi meg és ez hamis. Használok még HV-586-osokat (1 kép) amik a kapacitás mérés tekintetében pontosabbnak tartom. Mivel eredetileg 2 db-ot rendeltem így alapos átvizsgálást követően a hibásnál is meglett a hiba oka. Hiányzik belőle 2 db ellenállás (2-3 kép). Aránylag használhatónak tartom, főleg a belső ellenállás mérője miatt. További előnye hogy külső akkumulátorok is tesztelhetők. A termék minőség ellenőrzésén még van csiszolni való hogy az embert ne érje kellemetlen meglepetés, viszont a vevőszolgálat és a logisztika OK.
Roymall C.o.
Free Gift
Shipping Policy
Return Policy
Coupon Code
Direct purchase from the factory 
Electronic Components & Supplies
Module Board
Test & Measuring Module
