Deze accu-monitor werkt hartstikke goed,Alleen, een klein beetje te duur - maar ik heb er geen spijt van.

Battery works well as do all other products from ANCEL.1. Easy to install2. Tells you all about battery, charging system and starting system.3. Easy to use.NOW NOTE THE FOLLOWING AS ITS IMPORTANT!!!1. This unit must be stuck to batter with double sided tape.2. Battery SOC (state of charge) will NOT be accurate as soon as you install it. It needs about a day to learn and analyze the battery and charging system.This means actually using the battery in vehicle.After about a day.... it will be near accurate... but no device can tell you what the actual state of battery is chemically.3. It is very accurate interms of voltage, charging, dioide testing, starting test...Lastly... any negative reviews about this device not working accurately... did not allow it to learn the battery.

This is my updated review of ANCEL BM200 PRO, having used this device for a couple weeks. I also thought I'd explain a bit about batteries in response to some other reviews and questions. The manual it comes with is pretty brief.What I like about this device is that I can monitor a vehicle's battery from inside the house. I like that it has it's own display versus using a phone app, and it provides better range than bluetooth. I mainly just wanted the voltage but it also has State of Health (SoH) and State of Charge (SoC), plus temperature and cranking voltage.In my case I don't drive the vehicle much. I often have it on a maintainer, but it's not the greatest maintainer, and I'm concerned that it may overcharge the battery. Sealed Lead Acid (SLA) batteries like to be well-charged, but overcharging or undercharging can damage them. I have the maintainer plugged into a remote-controlled outlet so I can turn it on once a day or so for a few hours as needed. Then I also give the vehicle a start and short run every two weeks if I'm not driving it (turn the engine over, move lubricants, move the tire positions, run the AC, etc, to keep it running well). Starting a vehicle and running it for a few minutes will not usually fully recharge the battery, as starting is a heavy load. So charging it with a maintainer after a brief run is a good idea.I have a little device that plugs into the cigarette outlet and supplies usb ports, and gives a voltage reading. But it's not that accurate, plus if I open the car door to look at it, that turns the car electronics on which drops the voltage. So with this remote monitor, I don't need to be near or in the vehicle to see how the battery is doing. When I turn on the maintainer, I can see the voltage changing immediately, so I know it's charging. (Sometimes maintainer clips fall off, or the remote outlet fails to turn on, or a charger fails, so it's nice to have confirmation it's charging.)Modern cars use their battery for everything from power doors, to door locks, power windows, lights, electronics, alarm systems, etc. So keeping the battery well-charged is a good idea, and better for the battery. SLA batteries like to be fully charged. Plus by getting to know the battery and its behavior, one then has a sense of when it's failing and can replace it. I think cars should provide more info about battery state and health, so this monitor fills that gap.I'm using the display inside the house about 40 feet from where the vehicle is parked. It mostly gets good reception. One night it seemed to lose connection every few seconds (maybe some interference), but it was still usable. Normally it updates its voltage and temperature display about once per second when it's on. It has a connection indicator on the display which shows when it's getting a signal. It has worked very reliably.Installing the host on the battery was easy enough. My battery has clamps that attach to posts. First I tried attaching the host lead under the 10mm headed bolt that tightens the clamp on the post, but that caused the clamp to not tighten fully, so it wiggled on the post. Not good to have a loose connection. So instead I placed the lead under the 12mm bolt that attaches the battery cable to the clamp. That way everything is good and tight. It comes with a chunk of double-sided tape, about three times too big for a single use. So I cut off a piece, cleaned the battery surface with some isopropyl alcohol and dried it, and stuck it to the battery. Make sure you connect red to red and black to black. Wires are long enough for positioning. When first connected, the lights come on, then go off. No lights come back on immediately, until it learns for an hour or so, per the manual.The manual says the host (the part that connects to the battery) consumes an average 2.3 mA, supports a 6-25 V input voltage, has a working temperature of -40 F to 176 F, uses a 433 MHz radio frequency, and has short-circuit and overvoltage protections (internal fuse and reverse connection protection). No need to worry about that small current the host draws. If your battery is that low or rarely used, you should have it on a maintainer anyway.The display worked immediately reading the voltage. It reads about 0.04 volts lower than my trusted multimeter, so reasonably accurate. Temperature reading also appears reasonably correct.I find the display pretty handy to use. It's obviously designed to be placed inside the vehicle, but it's usable in an indoor setting too. It turns on based on detecting vibration or movement and is very sensitive. I have it on a desk, and just tapping once on the desk will turn it on, or even sometimes just walking by it, it will turn on. That's kind of handy as it reminds me to check it. Once on, it stays on for a few minutes, then turns off if it hasn't detected any more movement.There is also a power button underneath the front edge. This isn't mentioned in the manual, but I found that when I turn the display off using this button, it then stays off regardless of vibration or movement. It won't come back on until the power button is pressed again. This is a nice feature for indoor use, as it was turning on a bit excessively with any movement near it.It has a little solar panel on top, made to charge the internal lithium battery when sitting on a car's dash. I tried putting it by a house window, but that causes the display backlight to turn off, and makes it hard to see. So instead I just connected it to a USB-C cable. It comes with a very short cable, just a few inches, but any USB-C cable will do (same as most phones use).As a design note, it would be nice if the backlight had an additional setting. Currently a button under the front edge can set the backlight to either OFF or AUTO. Auto turns it off when the solar panel detects light, but that can make it hard to read. It would be nice if they added a third setting: ALWAYS ON. But it's usable as-is. It's got a pretty good battery in it (lithium 750 mAh permanent internal) so it doesn't need to be charged continously. In an indoor setting, it's easy enough to connect the USB power, and away from direct light the backlight is always on when the display is on. Easy to read even from 8-10 feet away, except the temperature reading which is smaller (larger numbers there would be nice instead of the huge SoH readout).So the main number I use is the voltage reading, eg 12.80 volts. Some info that's good to know:12.80 V = 100% Maintenance free, sealed (SLA), AGM or Gel cells (batteries without filler caps)12.60 V = 100% Low Maintenance or standard (batteries with filler caps for water) aka flooded11.80 V = 0% All types (battery fully discharged)Always try to keep above 12.0 V minimum = 20% capacity when not loaded. Best to keep discharge less than 50% (12.3 V). On a shelf, SLA batteries should be charged at 14.4 V for 24 hours every 6-9 months (or more). In a vehicle, try to keep the battery fully charged as much as possible (reading 12.80+ V), otherwise sulfation damage can occur, which will limit the battery's capacity. Some chargers also have a desulfation mode which can repair some damage, but not all. Charging voltage should generally not exceed 14.8 V, although some alternators and chargers do charge at up to 15 V.When SLA batteries are warmer, their voltage will read a little higher, and a little lower when colder. SLA batteries like a storage temperature of 68 F. They don't appreciate hot temperatures and climates, this will shorten their lifespan. Charge them when they're cooler. They tolerate cold well, but they discharge more quickly when cold, so should be recharged promptly if depleted. (Never charge a frozen battery, but they only freeze at well below zero.) Vehicles drain batteries slowly even when just sitting unused. If you don't drive every few days, put it on a maintainer. That way it will start right up, plus it will save your battery's health.The battery in my vehicle is a couple years old and appears to be in good shape. When the monitor was first connected, it read about 12.80 volts and showed 95% SoC, and 100% SoH. The maintainer brings it up to a fully charged sitting voltage of about 12.85-12.90 volts, depending on temperature. After using the monitor for awhile, it now shows 100% SoC, even when I deplete it a bit by opening power doors, etc. With a voltage of 12.75-12.90, a 100% SoC reading seems reasonable.It continued to read SoH 100% for a couple weeks until I started it the first time since installing the host. Then it showed a cranking voltage of 10.97 V, and the SoH reads 90%. The third light on the host is now lit, rather than the fourth.Here is a little general info about SoC and SoH. I noticed some reviewers were upset that their battery showed lower states, etc. The thing to know about these values is that they're estimates based on voltage observations. I wouldn't expect them to be perfect. It's not like a voltage reading which is a direct measurement. They mainly give you an idea of what is a baseline for the battery in its current state. Then if you notice the performance changing, you know the battery may be failing or degrading in performance.Just because SoH reads lower doesn't mean you have to replace the battery. If it holds a charge well and runs well, it's probably okay. Just note its typical values, then use that to get a sense of how it's changing over time. This device also learns a battery better over time, and if you disconnect the host, the data resets (per the manual).This device is not a battery tester. It just observes voltage changes and uses an algorithm to profile it. If you really want a battery tested, take it to a shop or buy a battery tester. That will place a brief load on the battery and give you more reliable data on its health, eg the cold crank amps (CCA) it is producing.State Of Charge (SoC) is an estimate of how charged the battery is. This is similar to when your phone says it has an 85% charge. SoC is based on voltage and temperature. It is either looked up in a data table for that type of battery, or it's based on a calculation which fits such data (eg a polynomial fit to a table). In the real world, it's just a rough estimate. If it's above 90%, the battery is probably well-charged. If it's in the 70s or 80s, it probably needs a charge. If it tends to stay low like that, maybe the battery is failing to hold its full charge (getting old), or there is an unexpected drain on it (a fault in the electrical system), or the charging system isn't recharging it well (eg bad alternator).There are websites which allow you to enter the voltage and temperature of an SLA battery, and they will show you the corresponding SoC. Just search for 'SLA SOC calculator'. You'll notice these websites may vary, and may not match what this device shows exactly (different data tables, different algorithms). Consider SoC a rough indicator.Most healthy SLA batteries will have a voltage of 12.80 or slightly higher when fully charged and not under load. When there is a load on the battery (opening a car door, etc), the voltage will often drop (eg 12.2-12.4 V). When the load is removed, the voltage will gradually return to 12.80 or so, unless the battery is more depleted. When starting, there is a heavy load, so the voltage temporarily drops more (cranking voltage and inrush voltage).State of Health (SoH) is an estimate of how healthy the battery is based on its voltage and charging/discharging characteristics. As this monitor observes the voltage over time, it profiles the battery and comes up with the estimate. But this device is not a battery tester, so there are limitations. It's just a rough estimate. The main thing to observe is how it changes over time. If SoH reads 50% for a long time, then starts reading lower, maybe it's time to get the battery tested or replaced. Batteries are like people: they have personalities. You get to know their characteristics by monitoring, and then when they change, you know there's something going on. So don't get too excited if the SoH isn't all you had hoped. It's just one rough profile based on limited voltage data, and results can vary. It's still helpful to have a value to see how it changes. Keep a dated log of the values each week or two.This monitor also displays cranking voltage. Typically for 12V systems, the normal cranking voltage at the battery should be at least 9.7 volts. Above 10 is better. This is the voltage measured while cranking the starter. You will also see inrush voltage discussed. When the starter first starts cranking, the inrush voltage is due to the heaviest load of all, and can briefly go down to eg 7.8 V. But measuring inrush voltage requires a special tester since it's very brief. This monitor only shows the cranking voltage during the last engine start.Cranking voltage also gives one good indication of battery health, since it represents how the battery is responding to a heavy load. It's probably included in the SoH estimate. Note the normal cranking voltage when the vehicle is starting well, and then if you see it dropping over time, you know the battery (or starting system) may be having problems.This monitor's display also has alarms for charging system, temperature, etc. It beeps at medium volume when an alarm goes off. I've heard it beep a couple times, but by the time I looked at it, the alarm was over, so not sure what it was saying. It would be nice for indoor use if the alarm message stayed longer, or until the display shuts off. I think a switch for volume would also be a good feature addition (OFF-LOW-HIGH at least). An alarm just alerts you to abnormality in the data, and it seems it can be due to transient connection issues.Overall, thus far I find this to be a very useful remote battery monitor with some nice features and good range. It's nice to have a phone-free model like this. It could use a few feature enhancements like I mentioned, but is pretty well done. It's good for keeping a battery at optimum charge levels for long lifespan (in conjunction with a maintainer/charger), and also good for identifying when a battery may be nearing it's end of life. SLA batteries usually only last 5-10 years at best.I think the people who make this should consider making a similar device as a general multimeter. A host which one can connect to any DC or AC voltage source with alligator clips, and a display which reads that voltage. Could also include a shunt and a current measurement. There are such battery monitors, but they are usually wired for a short distance, and limited to particular voltages. A general multimeter with remote display would be a useful product. I haven't seen one for sale thus far. But this battery monitor was a nice find, I've been looking for one like this for years.

Top klein und genau immer wiederDie App ist einfach zu installieren und ist auch super

I don't drive my truck a lot lately and as a result battery has gone dead a few times. I got this so I can check the battery remotely and it will also send a notification if your battery falls to a certain level that you can adjust in the app settings. It works perfectly from behind the wheel, I'm able to park almost directly under my bedroom window it should work fine from there too if I open the window. Bluetooth is a short range technology, most folks are saying under fifteen feet which is fine with me. There are a few tenders available that have wifi capabilities but this gadget is more versatile because you can use it with any charger or a solar panel etc. and keep an eye on your battery level remotely. The unit also has other functions that I have no plans to use at the moment but adds to the value of the item for sure. I had zero problems finding the app with the convenient scan box on the box the item comes in and the app had zero issues finding the gadget and pairing with it (make sure bluetooth is on before you install the software, the gadget comes on in pair mode like many if not most bluetooth gadgets these days. So far so good, it would appear they've improved things or I just lucked out and don't have any interference at my house. Does what I wanted, lets me monitor car battery voltage without getting into the engine compartment. You will automatically get a notification every day from the unit but it will only show current battery voltage level which is what I wanted it for.update roughly three weeks later: Item still working great but this morning when I started up the app it could not see the battery in my car only a couple feet away. I have noticed that sometimes with products using bluetooth an app update might mean you have to restart the phone/tablet or rarely even reinstall the bluetooth gadget before things start working correctly again. I don't know if there was an app update, it was in the 20's outside this morning but that shouldn't have been cold enough to create a problem. Turned the phone off and restarted, all working again so be aware that if you have issues you possibly need to turn off your phone and restart to get it working again (not a biggie). I put my new nocco genius 10 charger on the battery (probably stay away from where you have the gadget connectors on the battery just in case) and used the app to monitor the charging works perfectly shows voltage coming off the battery and percentage charged to get any more info you have to start the car up.

Einbau und Inbetriebnahme ging flott, leider keine deutsche Anleitung dabei. Nun kommt das Aber ... Wie kann ich die historischen Messwerte auslesen? Eine Verbindung mit der App ist nicht möglich, da keine Seriennummer zufinden ist.Ich habe dem Verkaufer per Mail mehrmals kontaktriert und bisher noch keine Rückmeldung bekommen.deshalb jetzt nur noch 1 Stern. In meinen Augen ein unseriöses Geschäftsgebaren.

Ich habe den Sensor um die LIFEPOS Verbraucherbatterie meines Bootes im Winterlager zu kontrollieren.(Solarzelle und Entfeuchter in Betrieb)Dabei ist mir folgendes wichtig gewesen :Auslesen, ohne daß ich die Plane entfernen muß.... FunktioniertLangzeitbeobachtung,da wären mir zwar längere Intervalle, und längerer Zeitraum wichtig gewesen, jedoch habe ich kein passendes Teil gefunden, das über die 30 Tage speichert.Alles zusammen, ist zwar teuer, aber deutlich günstiger als mehrere Kontrollfahrten.Deshalb 5 Punkte, habe noch eines bestellt für mein Zugfahrzeug diesmal die Starterbatterie. ;-)Was ich gut finde, ist die Einstellung Blei oder LIFEPOS.Was mir nicht so gefällt, ist die feste Einstellung des 5 Minuten Intervalls.Schließlich ist das Thema der Speicherung auch bei Wohnmobilen und anderen Campinggeräten wichtig. Und die stehen auch 4-5 Monate.Und noch eine Verbesserung für die nächste Generation : W-Lan mit Fernzugriff/Speicherung .. Fast jedes Winterlager hat schon W-Lan.

Anstatt 1mA hat das Gerät bei mir (nachgemessen) mehr als 5mA gezogen und damit meine teure YUASA Motorrad Batterie innerhalb von 6 Wochen tiefentladen und damit sulfatiert/zerstört.Weiteres Problem: Bluetooth Verbindung funktionierte eher zufällig. Meist funktionierte sie nicht.Am Ende war das Gerät dann komplett defekt und gab nur noch fiepende Geräusche von sich.Das ist China-Ramsch.

Ive tested it out to about 100 yards and it works well. Easy to read and understand what is happening with your battery. Wired it to a 12 volt male accessory plug and can use it in multiple vehicles. Built well, great value, and battery life is very good with the built in solar charger.

Ich habe des Teil an der Batterie angeschlossen ; gas Lesegerät hat die Spannung angezeigt , alles Super.Habe die Batterie abgeklemmt vom Teil und das Lesegerät hat immer noch 12 Volt angezeigt bei 100 %.Habe das Lesegerät aus und wieder eingeschaltet , keine Veränderung , Zeigt immer noch 12 volt und 100 % geladen an , obwohl keine Batterie angeschlossen war .Bin richtig enttäuscht .

Verbindung möglich nur bei freie 6m oder Motorraum Armatur Brett nicht Caravan Anhänger mit 7 m+ 3m Auto (Batterie ist in heck bei Anhänger)für mich zu teuer für was kann .

Schnelle Lieferung, macht was es soll, wäre mit einer deutschen Bedienungsanleitung schneller und einfacher in Betrieb zu nehmen. Es kann doch nicht so viel verlangt sein, wenn für in Deutschland verkaufte Sachen auch eine deutsche Bedienungsanleitung beigefügt wird (oder im Netz zum Download).

Habe mir das Gerät gekauft weil ich einen Pickup Fahre wo viele Baulichter dran sind und eine Standheizung. Ich wollte wiesen wie es um die Baterie steht !Habe das Gerät angeschlossen hat auch sofort was angezeit.Alles gut aber dann es verändert sich nichts auch bei Fahrt nicht!Ist das normal ! die Volts sollten sich doch ändern wenn ich licht oder sitzheizung auf mach keine Veränderung der Anzeige seit 2 Tagen 12.81volt andere anzeige seit 13.80-14 voltEntweder ist das Gerät eine mogeln Packung oder ist defekt. Wer wirklich sichere Daten braucht sollte mehr investieren und was profosioneles kaufen.Ich schicke das Teil zurück.