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  • 01/02/2019

    I have bought this battery many times it's worth the money and easy to charge with an ordinary cell phone charging cable. The capacity is surprisingly good better than a non rechargeable battery and way better than most other NiCd rechargeable batteries.

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  • 18/04/2019

    working great

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  • 21/08/2016

    This has similar capacity like a non-rechargable alkaline. The 400mA on the label is what can be discharged. The internal LiPos are 2x500mAh in parallel, This shows when charging from USB. The internal 3.8V are boosted to constant 9.4V until the cells are depleted, so no indication of remaining charge. From 5 pcs ordered, one arrived dead, but was easy to fix, badly soldered wire came lose. While doing discharge tests, I broke one when drawing high current accidentally, about 2A for some seconds. All in all a good product, will buy again.

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  • 10/08/2016

    It looks well made I measured at constant voltage 9,45V

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  • 01/12/2016

    this is very easy to use and charge with any micro usb charger (phone) . The power is about 300 - 360mA if you use it right away. there is a self discharge of about 2-10mA a day so don't use this in a low current application . (like a meter u use once a year or a smoke detector ) i think the electronic buck (step up) converter is using some energy to get a constand 9 VDC out of the 3,7 lipo cell inside. I use it in my Fluke 189 wyh full back lite leds on and it will last longer than regular cheap 9V alkaline cells. If the price drops i will buy more

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  • 22/11/2016

    Good quality. Came charged to 9.5V

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  • 01/11/2016

    I ordered two of these not expecting much but they are really good. Provide 9.5V output voltage constant, for up to 500mA. If more current is drawn, the voltage goes down. At 1.2A the output voltage is down to 6V. Measured capacity is 350mAh, almost as good as claimed. I discharged at 500 mA until empty and it got only slightly warm. When shorted, it will shut off and has to be reset by plugging it in for charging, just for a second. After that, it's back "on" again. Recommended!

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  • 08/11/2019

    Неимоверно долгая доставка! Заявлено 10-15 рабочих дней, плюс за это взимается дополнительная оплата, а на самом деле это заняло 42 дня! Заказ был сделан 27 сентября, но курьер принёс мне посылку только сегодня, 8 ноября. Отвратительная логистика! Но! Упаковка отличная. Хотя бы это хорошо..... Incredibly long delivery! It is declared 10-15 business days, plus additional payment charged for it, but in fact it took 42 days! The order was placed on September 27th, but the courier brought me the package only today, November 8th. Disgusting logistics! But! The packaging is great. At least that's good....

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  • 22/02/2017

    Подробный обзор можно прочитать здесь: http://mysku.ru/blog/china-stores/49672.html https://youtu.be/5RR4GC154Vc Девайс хороший. Но надо подзаряжать каждые 3 месяца. Внутри два параллельно подключенных аккумулятора на 3,7В и преобразователь на 9В. преобразователь работает постоянно . Ток холостого хода 226мкА

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  • 04/07/2017

    Great battery, simple to recharge and perfect for use with all 9V devices, as it outputs 9.5V. The claimed capacity is 400mAh. I measured the actual capacity (90 mA discharge, 8.1V cutoff) at 350 mAh. Much closer than many other fantastic battery capacity claims. Red LED on bottom means charging, goes out when fully charged. I'll buy more.

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