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USB D Lithium ion Rechargeable Battery, High Capacity 1.5V 12000mWh Rechargeable D Battery, 4 H Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,2-Pack

USB D Lithium ion Rechargeable Battery, High Capacity 1.5V 12000mWh Rechargeable D Battery, 4 H Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,2-Pack

Q: Seller was paid for 4 batteries, but I only got 3 working batteries. How can I reach their customer service?

Well. I got 2 but none of them works. Please let me know if you find out. Amazon should get rid of this seller.

Q: How long does the charge hold while not in use?

Lithium-Ion has a very high retention at mid-charge. Generally it loses around 5-10% charge in the first 72 hours until it hits 90%, then around 2-3% per month. Once it drops under 20%, it will begin to die out rapidly within around 2 weeks.

Q: Are these batteries supposed to reach temps of over 140+ degrees when charging? I'm afraid they're going to catch fire.

No, that is too hot. About 120 is as hot as they should get. You should be protected against a fire like the seller pointed out although it’s not a safety valve it’s a fuse that will break but can’t be reset. But if the battery is getting that hot in the first place it make me question the quality and worry that the fuse won’t work. The seller is completely wrong about it being impossible for the battery to catch fire, it’s rare but definitely possible. Also fire aside getting that hot is going to severely shorten the battery’s lifespan.

Q: What is the weight in grams of a single aaa battery?

Not sure but light them 1.2v recharge and regular 1.5v battery

Product ID: 225919754

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Details

Number of Batteries
2 D batteries
Brand
Lankoo
Battery Cell Composition
Lithium
Battery Capacity
650 Milliamp
Recommended Uses For Product
Camera

⚡4-Hour Fast Type-C Charging

🔄1200 Recharge Cycles Lifespan

🔋12000mWh High Capacity

Description

🔌 Recharge Smarter, Live Greener—Never Run Out of Power Again!

POWER THAT LASTS - 12000mWh capacity fuels your devices longer—no more mid-use power drops.
SMART LED INDICATORS - Red blinking while charging, steady light when full—know your battery status at a glance.
ECO WALLET FRIENDLY - Over 1200 recharge cycles mean fewer disposables, saving money and the planet.
CHARGE AT LIGHTNING SPEED - Type-C USB port delivers a full charge in just 4 hours—stay powered up and on the move.
UNIVERSAL SAFETY CERTIFIED - CE, FCC, and RoHS approvals ensure safe, reliable power for all your essential gadgets.

The LankooUSB D Lithium-ion Rechargeable Battery offers a robust 12000mWh capacity with rapid 4-hour Type-C charging. Designed for over 1200 recharge cycles, it combines eco-conscious savings with reliable, constant output. Featuring LED charge indicators and certified safety compliance, this 2-pack is perfect for powering everything from flashlights to digital cameras with confidence and convenience.

Have a Question? See What Others Asked

Seller was paid for 4 batteries, but I only got 3 working batteries. How can I reach their customer service?

How long does the charge hold while not in use?

Are these batteries supposed to reach temps of over 140+ degrees when charging? I'm afraid they're going to catch fire.

What is the weight in grams of a single aaa battery?

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