Currently have two Riva batteries that have stopped working as vaping batteries. These are manual button batteries, 510 connections, said to be 750 mah. These particular bats were purchased from Liberty-Flights in a lite bundle kit. At threaded end of batt "RIVA" is etched into a gold colored metal. The band at the button is also gold colored. While working these batts performed well IMO in that the Rivas as compared to Joye eGos (rated at 650 mah) produced a noticeably different and much better vape. (Upon testing with a Fluke 11 Multimeter, the Rivas showed an unloaded reading just off charger of 4.22 volts whereas the Joye eGo showed 3.44. When tested loaded with a 2.5 ohm atomizier the numbers were 3.81 volts for the Riva and 3.23 volts for the Joye eGo. That is, just off charger, the Rivas where providing 39% more wattage that the Joye eGos.)
In ordinary operation when the batt reached its cut-off voltage (at an unloaded voltage about the same voltage as the Joye eGo unloaded voltage just off charger), the button would blink multiple times (possibly 5 times but perhaps a bit more that 5 times) and then go off. After such blinking, depressing button does nothing in terms of lighting the LED at the button, whether with load or without. Then, placing the batt on the charger and plugging into a power source causes the batt to blink again multiple times (probably 5 times) and go off. But, normally after the blinking the charger turns red indicating charging is taking place.
At some point one of the "stopped" batts did the following: After usage to cut-off the batt blinked multiple times. (Indicating cut-off had been reached.) However, when placed on the charger the ordinary blinking at start of charging did not occur and the charger stayed green. Notwithstanding the green at charger, left the batt plugged in for hours. Upon removing the batt from the charger the following occurs: Depressing button with no load seems to do nothing - no lit LED. However, reading voltage without button depressed gives a read of 3.725 volts. Depressing buttons does not change meter reading. Putting a load on the battery will at times (but not always) cause the LED to blink 3 times as contact is made. With load in place, depressing button causes the LED to blink 3 times - then off. Depress again - blinks three times then off. Then, removing load causes LED to blink at more rapid rate (maybe 5 times) when contact with load broken. Once load if fully removed, depressing button produces no lit LED. Shorting the positive and negative of batt with one of probes of multimeter causes LED to blink rapidly (like when load of an atty is removed).
Second stopped batt - a little different than first. Button on lighting LED unloaded, nothing, as first. Voltage measured unloaded as 3.222 volts. Putting load on batt - nothing lighting at LED. Depress button with load on - LED blinks at the less rapid but for maybe 30 blinks. Once 30 or so blinks done - depressing button does nothing. Removing load causes 3 blinks from LED. Once, unloading blinking finished - nothing from depress of button. Shorting + and - with probe - 5 blinks then off - even if short stays in place.
Any ideas on causes of "stop" or ideas on how the Rivas might be revived?
In ordinary operation when the batt reached its cut-off voltage (at an unloaded voltage about the same voltage as the Joye eGo unloaded voltage just off charger), the button would blink multiple times (possibly 5 times but perhaps a bit more that 5 times) and then go off. After such blinking, depressing button does nothing in terms of lighting the LED at the button, whether with load or without. Then, placing the batt on the charger and plugging into a power source causes the batt to blink again multiple times (probably 5 times) and go off. But, normally after the blinking the charger turns red indicating charging is taking place.
At some point one of the "stopped" batts did the following: After usage to cut-off the batt blinked multiple times. (Indicating cut-off had been reached.) However, when placed on the charger the ordinary blinking at start of charging did not occur and the charger stayed green. Notwithstanding the green at charger, left the batt plugged in for hours. Upon removing the batt from the charger the following occurs: Depressing button with no load seems to do nothing - no lit LED. However, reading voltage without button depressed gives a read of 3.725 volts. Depressing buttons does not change meter reading. Putting a load on the battery will at times (but not always) cause the LED to blink 3 times as contact is made. With load in place, depressing button causes the LED to blink 3 times - then off. Depress again - blinks three times then off. Then, removing load causes LED to blink at more rapid rate (maybe 5 times) when contact with load broken. Once load if fully removed, depressing button produces no lit LED. Shorting the positive and negative of batt with one of probes of multimeter causes LED to blink rapidly (like when load of an atty is removed).
Second stopped batt - a little different than first. Button on lighting LED unloaded, nothing, as first. Voltage measured unloaded as 3.222 volts. Putting load on batt - nothing lighting at LED. Depress button with load on - LED blinks at the less rapid but for maybe 30 blinks. Once 30 or so blinks done - depressing button does nothing. Removing load causes 3 blinks from LED. Once, unloading blinking finished - nothing from depress of button. Shorting + and - with probe - 5 blinks then off - even if short stays in place.
Any ideas on causes of "stop" or ideas on how the Rivas might be revived?
How long have you had them?
