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Take full control of your battery health with the LiitoKala Lii-500S 4-Slot Smart Battery Charger. Equipped with an upgraded touch screen interface, this high-end charger combines intelligent charging with professional-grade capacity testing, making it a must-have tool for enthusiasts and technicians.
The Lii-500S supports mixed chemistry charging, allowing you to charge 3.6/3.7V Li-ion (18650, 21700, 26650) and 1.2V NiMH/NiCd (AA, AAA, SC, C, D) batteries simultaneously. With its advanced microcomputer control, it automatically identifies the battery type and voltage, delivering a precise and safe charging current.
Its most powerful feature is the TEST (Capacity Test) Mode, which discharges and recharges the battery to accurately measure its true mAh capacity, helping you weed out fake or degraded cells. The upgraded 2A fast charging dramatically reduces waiting time, while the 0V Activation feature safely revives over-discharged batteries.
Plug Options: This charger comes in US, EU, and UK plug variants. Please select the correct plug type for your region before placing your order.
Upgraded Touch Screen Interface: High-sensitivity touch buttons replace traditional mechanical switches, offering a modern, durable, and professional user experience.
Accurate Capacity Test (TEST Mode): Automatically discharges and recharges the battery to measure its true mAh capacity. Perfect for identifying fake, old, or high-resistance batteries.
Smart 2A Fast Charging: Delivers a maximum 2A charging current (selectable between 500mA, 700mA, 1000mA, and 2000mA), reducing overall charging time while maintaining battery health.
0V Activation & Microcurrent Repair: Intelligently detects over-discharged (0V) batteries and applies a precise microcurrent to safely revive them.
Mixed Chemistry & Multi-Size Support: Automatically identifies and charges both Li-ion and NiMH/NiCd batteries. Compatible with 10440, 14500, 16340, 18650, 21700, 26650, plus AA, AAA, SC, C, and D sizes.
Real-Time LCD Data Display: Shows charging/discharging current (A), voltage (V), capacity (mAh), and elapsed time simultaneously for each of the 4 independent slots.
8-Layer Intelligent Safety Protection: Built-in flame-retardant PC materials and an advanced protection IC provide comprehensive protection against overcharge, over-discharge, over-current, over-temperature, short circuits, and reverse polarity.
Brand: LiitoKala
Model: Lii-500S
Input: DC 12V / 2A (AC Adapter or Car Adapter)
Charging Current: 500mA / 700mA / 1000mA / 2000mA (Selectable)
Discharge Test Current: 250mA / 500mA (Selectable)
Compatible Chemistries: 3.6V/3.7V Li-ion / 1.2V NiMH / NiCd
Compatible Sizes: 10440, 14500, 16340, 18650, 21700, 26650, AA, AAA, A, SC, C, D
Plug Type: US / EU / UK (Select before purchase)
Material: PC Flame-Retardant Material
Dimensions: 158mm × 147mm × 40mm
Net Weight: 560g (Including packaging box)
Note: Batteries are NOT included.
Battery Enthusiasts & Testers: Checking the true capacity of 18650/21700 cells for DIY projects.
Technicians & Repair Shops: Reviving over-discharged batteries and identifying faulty cells.
Outdoor Enthusiasts: Charging high-capacity cells for flashlights, headlamps, and camping gear.
Household Maintenance: Keeping AA/AAA NiMH batteries charged and healthy for everyday devices.
Q1: How do I use the capacity test function?
A1: Press the MODE button to switch to "TEST" mode. The charger will automatically fully charge the battery, then discharge it to measure the exact mAh capacity delivered, and finally recharge it. The display will show the true capacity, helping you assess battery health.
Q2: Can I charge Li-ion and NiMH batteries at the same time?
A2: Yes. The Lii-500S features four independent slots with a smart identification system. You can charge a 3.7V 18650 in Slot 1 and a 1.2V NiMH AA in Slot 2 simultaneously. Each slot receives a precisely matched charging current.
Q3: What are the differences between the US, EU, and UK plugs?
A3: US is for the United States and Canada (two flat pins), EU is for mainland Europe (two round pins), and UK is for the UK, Ireland, and Singapore (three rectangular pins). Please select the correct plug type according to your country's wall outlets before ordering.
Q4: Can it safely handle 21700 and 26650 batteries?
A4: Absolutely. The 4 slots are designed with a wide bay and extended length, fully accommodating 21700 and 26650 batteries, even those with protection boards.
Q5: Why is the touch screen not responding?
A5: Please ensure your fingers are clean and dry. If the charger is locked, long-press the MODE button for 3 seconds to unlock it. Also, check if the "Lock" icon is displayed on the screen.
Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
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At OneAndes, we are committed to providing high-quality cylindrical lithium-ion batteries for your drones, vacuums, garden tools, and other power needs. If you are not completely satisfied with your purchase, we are here to help. Please read our full return policy below before initiating a return.
1. Return Window
You have 30 calendar days from the date you received your item(s) to request a return. Any return request submitted after 30 days will not be eligible for a refund or exchange.
2. Eligibility Conditions
To qualify for a return, all items must meet the following conditions:
Condition: Items must be unused, undamaged, and in the same condition that you received them.
Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
Batteries that have been installed, used, or show any signs of wear.
Items marked as “Final Sale” or “Clearance” at the time of purchase.
Customized or special-order products.
Gift cards.
If a returned item fails to meet these conditions, we reserve the right to deny the return or charge a restocking fee.
3. How to Initiate a Return
Follow these steps to return your product:
Contact Us: Email our support team at support@oneandes.com with your order number and the reason for return. We aim to respond to all return requests within 24 hours on business days.
Receive RMA: We will provide you with a Return Merchandise Authorization (RMA) number and return instructions. Do not ship any item without an RMA number.
Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
Ship to Our US Warehouse: Ship the package to the following address:
OneAndes Returns
10320 6th St
Rancho Cucamonga, CA 91730
USA
*Important: Lithium-ion batteries are classified as hazardous materials (Class 9). Please follow the shipping guidelines provided in Section 4 below. We recommend using a trackable shipping service and purchasing shipping insurance, as we cannot guarantee receipt of your returned item.*
4. Return Shipping Costs
Defective or Incorrect Items: If the item you received is defective, damaged in transit, or different from what you ordered, OneAndes will cover the return shipping cost. In this case, we will provide you with a prepaid return shipping label.
Buyer’s Remorse / Non-Defective Returns: If you are returning an item for any other reason (e.g., no longer needed, ordered the wrong model), you are responsible for the return shipping costs. You must prepay the return shipping cost using a trackable carrier that accepts lithium batteries. We do not provide prepaid return labels for non-defective returns.
Lithium Battery Shipping Regulations: By law, all returns must be shipped in compliance with applicable dangerous goods regulations. We will provide guidance on proper packaging and labeling. Failure to comply may result in carrier refusal, seizure, or additional fees. We are not responsible for returned items lost or rejected by the carrier due to improper shipping.
5. Refunds
Once we receive and inspect your return at our Rancho Cucamonga, CA facility, we will notify you via email of the approval or rejection of your refund.
Approved Refunds: If approved, your refund will be processed to your original method of payment within 5 to 10 business days. Please note that depending on your bank or credit card issuer, it may take additional time for the credit to appear on your statement.
Partial Refunds: In certain situations, only partial refunds may be granted:
Items not in original condition, missing parts, or damaged for reasons not due to our error.
Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
Restocking Fee: We do not charge a restocking fee for defect-free returns, but we may deduct the return shipping cost, which will be deducted from your refund.
6. Exchanges
We replace items only if they are defective or damaged upon arrival. If you need to exchange a defective item for the same product, please contact us at support@oneandes.com. Exchanges are subject to product availability.
If you ordered the wrong battery size or model, please follow the standard return process above and place a new order for the correct item.
7. Damaged or Missing Items
If your package arrives visibly damaged, please take photos of the package before opening and contact us immediately. We will work with the shipping carrier to file a claim and arrange for a replacement or refund. Damaged or missing item claims must be reported within 7 calendar days of delivery. For immediate assistance, you may also call us at (213) 316-8849.
8. Order Cancellation
You may cancel your order without penalty if it has not yet been shipped. To cancel, email us at support@oneandes.com as soon as possible. If the order has already been processed or shipped, you will need to follow the standard return process upon receipt.
9. Warranty
All OneAndes batteries are backed by a 12-month limited warranty against defects in materials and workmanship. This warranty does not cover damage caused by misuse, improper charging, unauthorized modifications, normal wear and tear, or use outside of manufacturer specifications. For warranty claims, please contact our support team.
10. Contact Us
If you have any questions about our Return & Refund Policy, please reach out:
Email: support@oneandes.com
Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
Mailing Address: 10320 6th St, Rancho Cucamonga, CA 91730, USA
We aim to respond to all inquiries within 24 hours during business days. Please include your order number for faster assistance.
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