9V Rechargeable Battery,850mAh High Capacity Li-ion 9V Batteries 4 Pack PP3 6F22 9V E-block Lithium Batteries for Smoke Detector Alarm,Fire Alarm,Multi-meter,Radio Microphone,Kids Toys(Battery Only)

9V Rechargeable Battery,850mAh High Capacity Li-ion 9V Batteries 4 Pack PP3 6F22 9V E-block Lithium Batteries for Smoke Detector Alarm,Fire Alarm,Multi-meter,Radio Microphone,Kids Toys(Battery Only)

Q: Got 4 batteries pluged in charger, all 4 led are flashing both green and red, where when pluged just 3 batteries there is 3 solid red lights.That ok?

This means that your USB port is not supplying enough amps for the number of batteries charging. This will happen with say an older usb power adaptor. Try (i) charging less batteries at one time (ii) getting a new power adaptor that is rated for usb c or (iii) just plugging it into something that can supply enough power such as a PC.

Q: Will they discharge if left connected to the unplugged charger? When not in use, would be handy if I can leave connected to protect the terminals.

No definitive answer on this in my experience if kept on the charger and briefly plugged back in prior to use they may show charging briefly (5_10 mins max) but this may be due to lithium batteries normal nominal loss while stored (much less than nic cads) rather than any effect of the storage being in the charger.

Q: Are these batteries the same measurements as everyday standard 9 volt batteries. Please.

I only use these type of 9volt batteries so I couldn't say if they were the same measurements as alkaline ones. They last well until needing recharged

Q: can you charge these on a standard multi battery mains charger

Yes, assuming there are the appropriate "press-stud" contacts on your multi-charger. This is exactly what I have. Additionally, the batteries arrived with a coupon to claim a free charger, specifically for the 9 volt batteries.

4.6/5

Product ID: 153205942

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Details

Number of batteries
4 Lithium Ion
Brand
Kratax
Battery cell composition
Lithium Ion
Compatible phone models
6f22/pp3/ pp9
Recommended uses for product
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⚡4H fast charge

🔋850mAh capacity

♻️500 recharge cycles

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Description

🔋 Power that Lasts: Never Run Out of Juice Again!

SAFETY FIRST - CE/RoHS certified with multi-protection features.
ECO FRIENDLY ENERGY - Non-toxic, memory-free, and sustainable.
POWER UP YOUR DEVICES - Experience longer use time with 850mAh capacity.
VERSATILE COMPATIBILITY - Perfect for smoke detectors, toys, and more.
QUICK CHARGE CONVENIENCE - Fully charge in just 4 hours, no need to pair.

The Kratax 9V Rechargeable Battery pack includes four high-capacity 850mAh lithium-ion batteries designed for a variety of devices, offering safety features, quick charging, and eco-friendly performance with up to 500 recharge cycles.