I threw my manual away. can anybody tell me what the difference is between solid red leds and blinking red leds?

Solid red indicates that the batteries are charging. Blinking red LED means at least one cell is damaged and cannot be charged safely. Damaged cells should be disposed of promptly and properly.

Can this charge an odd number of batteries?

No, this AmazonBasics charger can only charge even number of batteries. That means 2x AA, 4x AA, 2x AAA, etc. Also, you cannot group 1x AA and 1x AAA as a pair.

Can i use this charger to charge only 2 batteries or i need to put batteries in all 4 slots?

It's two left two right or all 4 not sure on mixing sizes if you have 3299 USB then there is a pdf of the instructions 4227.pdf in Google should get you there. https://www.batteryspace.com/prod-specs/4227.pdf&ved=2ahUKEwjolKTupIHfAhVpw4MKHQAnAfMQFjAFegQIBBAB&usg=AOvVaw1xyiATwKih9nPrJvkC-Od-&cshid=1543758640486

can i charge the batteries with a portable battery using the usb?

According to the instructions if you have anything charging using the USB plug in then batteries will not be charged until you are finished charging with the USB plug. In other words you cannot use both at the same time.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Amazon Basics Rechargeable Battery Charger for AA & AAA Ni-MH Batteries with USB Port, Portable, Travel-Friendly, Over-Charge Protection, Black

Amazon Basics Rechargeable Battery Charger for AA & AAA Ni-MH Batteries with USB Port, Portable, Travel-Friendly, Over-Charge Protection, Black

Product ID: 19922174

Details

Brand
Amazon Basics
Color
Black
Item Weight
104.32 Grams
Output Voltage
1.2 Volts
Product Dimensions
4.5"D x 2.75"W

⚡4-hour fast charge

🌍Worldwide voltage compatibility

🔌USB port for device charging

28798CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

Description

🔋 Power up anywhere, anytime — never run out of juice again!

SMART SAFETY TECH - Built-in wrong polarity protection and auto cut-off prevent overcharging and extend battery life.
COMPACT LIGHTWEIGHT - Slim 4.5 x 2.75 x 1.5 inch design fits effortlessly in your bag or desk setup.
MULTI DEVICE USB PORT - Charge your smartphone or iPod on the go with a convenient 0.5A USB output.
UNIVERSAL TRAVEL READY - Flip-down plug and 100-240V switching power make it your perfect global companion.
DUAL PAIR CHARGING POWER - Recharge 2 or 4 AA/AAA Ni-MH batteries simultaneously for maximum efficiency.

The Amazon Basics Rechargeable Battery Charger efficiently powers AA and AAA Ni-MH batteries in just 4 hours, featuring a USB port for charging handheld devices. Its compact, travel-friendly design supports worldwide voltage (100-240V) and includes advanced safety features like wrong polarity protection and overcharge cut-off, making it an essential, reliable accessory for professionals on the move.

Specifications

ASIN	B00TOVTZ7K
Amperage	0.5 Amps
Battery Charge Time	4 Hours
Best Sellers Rank	#1,488 in Our Brands ( See Top 100 in Our Brands )
Brand	Amazon Basics
Color	Black
Compatible Devices	Ipod
Connector Type Used on Cable	usb
Current Rating	0.5 Amps
Customer Reviews	4.5 out of 5 stars 33,257 Reviews
Global Trade Identification Number	00841710107548
Input Voltage	120 Volts
Item Dimensions D x W x H	4.5"D x 2.75"W x 1.5"H
Item Weight	104.32 Grams
Manufacturer	Amazon
Mfr Part Number	V-3299USB
Model Number	V-3299USB
Output Voltage	1.2 Volts
Product Dimensions	4.5"D x 2.75"W x 1.5"H
UPC	841710107548
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

28798CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews