Are these truly 1.5v or are they 1.2v like all of the other rechargeable AA batteries?

Yes, they maintain a steady 1.5V. Others have done tear-downs on these, and it appears inside is a 3.7V Li-ion cell that has been brought down to 1.5V using miniaturized electronic circuitry. One caveat - these batteries will maintain a steady 1.5V until the very end of the discharge cycle, and then suddenly drop the voltage. Thus, keep a few spares handy.

Your first generation tenavolts state in title that they are "lithium/li-ion", so is this interchangeabl or is this lithium battery different? how so?

Exactly! The cathode/anode materials of TENAVOLTS are LiCoO2/Graphite, which are widely used in rechargeable battery. They would be interchangeable and reversible when charging and discharging.

Lithium ion or lithium polymer

These are lithium ion. Lithium polymer are the flat packs like they use in phones.

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NANFU Rechargeable Lithium/Li-ion Batteries, AA rechargeable batteries, Micro USB Charger included, Constant Output at 1.5V, Quick Charge less than 2 hours, 2775 mWh electrical core power- 4

NANFU Rechargeable Lithium/Li-ion Batteries, AA rechargeable batteries, Micro USB Charger included, Constant Output at 1.5V, Quick Charge less than 2 hours, 2775 mWh electrical core power- 4

Product ID: 542589201

Details

Battery cell composition
Lithium Ion
Brand
Tenavolts
Number of batteries
4 AA batteries
Recommended uses for product
Toys
Voltage
1.5 Volts

⚡1.5V constant output

🔋1000 recharge cycles

⏱️1.8-hour quick charge

Description

🔋 Power up faster, last longer, and stay ahead of the pack!

ECO WALLET FRIENDLY - Up to 1000 recharge cycles means fewer replacements, saving money and reducing waste.
UNWAVERING POWER BOOST - Consistent 1.5V output ensures your devices run at peak performance without voltage drops.
LIGHTNING FAST RECHARGE - Fully charged in just 1.8 hours—cut your downtime in half compared to traditional Ni-MH batteries.
READY FOR ALL YOUR DEVICES - Perfect for toys, remotes, and gadgets demanding reliable, long-lasting power.
EXCLUSIVE CHARGER COMPATIBILITY - Unique Tenavolts charger guarantees optimal battery health and safety with every recharge.

Tenavolts NANFU AA rechargeable lithium-ion batteries deliver a stable 1.5V output with ultra-fast 1.8-hour charging and an impressive 1000 recharge cycles. Designed exclusively for use with the Tenavolts micro USB charger, these batteries combine cutting-edge technology with eco-conscious durability, making them the smart choice for professionals and tech-savvy users seeking reliable, long-lasting power.

Specifications

ASIN	B07HQ7QV7W
Amperage	1.5 Amps
Antenna Location	Toys
Battery Cell Type	Lithium Ion
Battery cell composition	Lithium Ion
Brand	Tenavolts
Compatible Phone Models	AA lithium battery
Customer Reviews	4.3 out of 5 stars 215 Reviews
Item Dimensions	13.2 x 9.9 x 3.3 centimeters
Item Weight	176 Grams
Model Number	VD-U4XU-O06R
Number of Batteries	4 AA batteries required. (included)
Number of batteries	4 AA batteries required. (included)
Recommended uses for product	Toys
Reusability	Rechargeable
UPC	191763000717
Voltage	1.5 Volts

Reviews

B**R

Tenavolts Konstante1.5V Leistung AA Lithium Wiederaufladbar Akkus (x4)

Entspricht den Erwartungen.

11.11.2025

M**A

Un buon prodotto

Confezione, qualita' e prime impressioni molto molto positive. Dai test su internet sono di medio alto livello, la giusta soluzione per avere batterie ricaricabili ma con voltaggio da 1.5V. Inoltre unica marca seria al momento ad avere la versione AAA. Quando cariche il LED blu si spegne.

8.01.2022

A**.

Great product

This product is so somple to use and it works perfectly.

21.12.2024

G**6

Pile rechargeable qui fait l'affaire pour le moment par contre à voir sur le long terme

J'utilise les piles rechargeables pour les caméras de surveillance blink de chez Amazon. Cela fonctionne bien même si au niveau longévité je dois les changer environ toutes les trois semaines ce qui est un peu plus qu'avec les piles non rechargeables par contre les économies se feront sentir rapidement une fois le prix d'achat amorti. A voir cependant sur le long terme.

19.03.2023

A**R

Working well

Been using these for about 4 years now for blink camera still holding a good charge

22.10.2024

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