How to charge Hantek 1833C LCR meter? - Page 1
Forum section: electronics / testgear

author: u666sa
author_rank: Frequent Contributor
timestamp: July 30, 2023, 07:34:26 am
content: So it arrived without batteries. Luckily I had some tested elements that I pulled from notebook battery pack. I can't understand how to charge the meter. I plug in power cable and the power button lights up red. How would I know that it is fully charged?I'm under impression that the charging won't stop.Manual has no information.

author: RAPo
author_rank: Super Contributor
timestamp: July 30, 2023, 07:51:25 am
content: It will stop charging when the battery is full. Give it a night. It can be that the battery are to much depleted.

author: sonpul
author_rank: Regular Contributor
timestamp: July 30, 2023, 09:27:28 am
content: The instructions indicate that a controller is installed in the device, the charge time is approximately 2 hours. Trust the controller.The only moment. Old 18650s sometimes get hot when approaching 100% charge due to high internal resistance and the charge does not end for a very long time or never. I have these from Sony and Panasonic from old laptops. It is strange that this happens at very low charging currents. Probably something with chemistry, so be careful. This is sometimes called the term "perpetual charge". Personally, my temperaturewhen heated, such batteries scare, they are very hot. Heating is exactly at the end of the charge, when the charging current should be minimal.At the same time, most older 18650s work well. Better buy a new battery.

author: u666sa
author_rank: Frequent Contributor
timestamp: July 30, 2023, 09:58:13 am
content: Quote from: sonpul on July 30, 2023, 09:27:28 amThat's the thing. Batteries are fully charged. I charged them on external lab power supply. Bad once were thrown out, good once I left for use. So the batteries that I put into it are fully charged. I just used the unit to test all my spare caps, warm up 15 minutes, and then about 1.5 hours testing everything in my stock pile. They still show full. I decided to charge before storage and realized I don't know what should happen when the charging stops?When the charging stops the red light goes out?

author: u666sa
author_rank: Frequent Contributor
timestamp: July 30, 2023, 10:41:03 am
content: NEVER MINDI just didn't wait long enough.When the charging completes, red power button stops blinking.Manual is really crappy, BTW. In that context, I would have many more questions which manual did not address. Fast, slow, medium speed for example. Range, 300 mv vs 600 mv. Because as it turns out I have no idea how to use this meter, other than measure ESR and capacitance. Manual does not teach you about these things.

author: RAPo
author_rank: Super Contributor
timestamp: July 30, 2023, 11:27:52 am
content: Grab a beer, take a chair and this video tells all you need to knowhttps://youtube.com/watch?v=ivVSq0IiZGo&feature=share

author: hexreader
author_rank: Frequent Contributor
timestamp: July 30, 2023, 03:23:26 pm
content: Charging is indicated by a red light behind power buttonIt can easily take 2 hours before the meter can be turned on, if batteries are depletedFull charge is indicated by power red light changing to no power light (perhaps after about 8 hours) - does not matter if unit in use or notDevice is protected from over charging - leave on supplied charger if in doubt - 1833C will look after itself if power connectedDevice has limited power-down protection - Batteries can discharge below minimum level after a long period without use (months, not years)Download the manual for Hantek 2000 series oscilloscope for better battery information (page 27) - e.g. 2D42, NOT DSO 2000 - different device but same charging circuitry---------------------------------------------From 2D42 manual:ChargeWhen the battery frame on the screen is displayed as blank, it indicates that the battery isabout to run out. When the battery power is too low, the oscilloscope will prompt “Poweroff after 5s”. In order to avoid the automatic shutdown of the oscilloscope due toinsufficient power supply, please charge it in time.If the power button is pressed, the oscilloscope will not react, indicating that the batterypower may be exhausted.You can charge the oscilloscope in the following way:Charge the oscilloscope through charger: Connect the oscilloscope to the powersocket through the USB data line and charger distributed by the instrument for charging.Charge the oscilloscope through the USB interface: Connect the oscilloscope to acomputer or other equipment through the USB data line.When charging, turn on the oscilloscope and the battery frame on the screen will change.When the battery is full, the oscilloscope will automatically stop charging.Storage and Replacement of the batteryStorageLithium battery can be stored in clean, dry and ventilated rooms. Contact with corrosivesubstances should be avoided and away from fire and heat sources.If the lithium battery is not used for a long time (for example, more than 6 months), itshould be charged with 50%-70% electricity, and removed from the instrument, and storedin a dry and cool environment.If the lithium battery rusts, leaks, bulges and other phenomena, it should be removedimmediately and scrapped.ReplacementBatteries can be recharged repeatedly, but they are vulnerable to wear and tear. Ifstandby time is found to be greatly reduced, batteries need to be replaced.The battery specification is 18650 lithium battery, 3.7V, 2600mA.Please refer to the following to replace it.Unfold the supporting leg, there are two screws. Remove the screws and remove thebattery cover, you will see the batteries. Now you can remove the battery and replace.Attention: Pay attention to the positive and negative poles of batteries when replacingbatteries.

author: u666sa
author_rank: Frequent Contributor
timestamp: September 23, 2023, 08:40:17 am
content: A little UPDATE:First time around batteries charged okey even though it took a while. Now it was two months ago. Since then, I used the meter, didn't charge, no need. Now this time around decided to charge and no go. Left it over night, still charging in the morning. Took out batteries, 4.7 volts each. Replaced them with other sells which read 4.1 volts. Then charged, charging light now turns off.So, if charging light does not turn off for a long time, that means cells, perhaps not bad bad, usable, but not getting up to their 4.1 - 4.2 volts.Now, fully charged cells, in this unit, read the following:4.1274.126