The battery does not seem to hold a charge any more. What are my options?

The reason this page is a method rather than an answer is that the answer would have to come from a figure nobody has published. I would rather hand you a pen and a clock than a number I invented, and the three readings you end up with are worth more in a conversation than any sentence I could write about cells in general.

The answer, in full

Three of them, and the first two are yours. No warranty term and no battery-cycle life is published, so there is no entitlement here for me to describe. There is also no self-discharge figure and no account of how a cell behaves over its life, so I cannot tell you whether what you are seeing is expected or not, and I am not going to pretend otherwise. What is published is the specification: 2000 mAh, Type-C with the cable in the box, and up to ten hours continuous or thirty hours intermittent per charge. Those are ceilings. So: observe it against them, record three runs on paper, and send the three readings to SOSA on WhatsApp at +91 96192 18531. WhatsApp +91 96192 18531 is the only published route, and no email address, no enquiry form and no ticket queue is published anywhere. A portion of every SOSA order supports girl-child education through Nanhi Kali.

How to turn an impression into three readings

An impression is hard to act on and a reading is not, and the difference between them is a pen. None of what follows measures anything SOSA publishes a rate for; it just makes your experience repeatable enough to describe.

What is published: the ceiling, and nothing about the cell's life

The published figures are 2000 mAh, Type-C charging with the cable in the box, and up to ten hours continuous or thirty hours intermittent per charge. The ten and thirty hour figures describe the 2000 mAh battery per charge, not how long the oil lasts. No warranty term and no battery-cycle life is published, so there is no entitlement here for me to describe. So there is no figure anywhere that says what the cell ought to do in its second year, and the ten and thirty hour figures are ceilings rather than guarantees for any particular run.

A ceiling is not a promise for every run.

What to observe: one setting, one timer position, the clock

Leave it on the cable for the same length of time before every run, whatever that length is, because no charge duration and no indicator behaviour is published and the only thing you can hold steady is your own habit. Set it to one of the three speeds and leave that speed alone. Put the timer at three hours so each run ends the same way, restart it when it ends, and write the time you started and the time it stopped putting anything out. Change nothing else. Do it three times on three different days.

What to record: six lines, and then one message

Per run: the date, the speed, the timer position, the start time, the time it stopped, and whether you had restarted the timer in between. Add the bottle level against your marker-pen mark, so the person reading it can see the oil was moving. Then message SOSA on WhatsApp at +91 96192 18531 with all three runs in one message. WhatsApp +91 96192 18531 is the only published route, and no email address, no enquiry form and no ticket queue is published anywhere.

Three runs in one message, not three messages.

Rule the oil out before you blame the cell

A unit that is running and a unit that smells of something are two different observations, and it is easy to read an empty bottle as a dead battery. Mark the oil level on the 20ml bottle with a marker pen and write the date beside it, then look again after your three runs. No consumption rate is published, so the mark proves movement and times nothing. If the level has not moved at all, that is a different message to send and it belongs in the same conversation.

If the oil turns out to be the thing that ran out, the waterless nebuliser refills are ₹1,049 for 100 gm and ₹1,849 for 300 gm. The refill prices are published and the interval is not. See the 100 gm and 300 gm oils →

What the three runs give you, and what nothing can

I will not tell you the unit is failing and I will not tell you it is fine. Neither is knowable from a page, nothing published settles it, and the person with your three readings in front of them is in a far better position than I am. The ten and thirty hour figures describe the 2000 mAh battery per charge, not how long the oil lasts.

“Three dated runs on one setting, with a start time and a stop time. That is the whole of what a page can give you here, and it is more than a number would be.”

Three runs, three days, one message

1. Give it the same time on the cable each run, then pick one speed and leave it.
2. Put the timer at three hours, restart it when it ends, and watch the clock.
3. Write the date, the speed, the start time and the time it stopped.
4. Repeat twice more, then send all three runs on WhatsApp in one message.

Questions, answered