Teric owners, have you required repair or replacement service?

[Manatee Diver]

I’m still not clear on what the 62% and 78% readings mean - how long after you recharged them did it take to get to those readings?

Two dives (approximately four hours) and about two weeks of sitting.

Those numbers should be within a few percent of each other. In a month or two it will start dropping dramatically 2-4% overnight.

Your iPhone requires charging every night because that is the natural usage cycle. You would be very annoyed that within the battery wear equivalent of a couple of months that it could barely do a half a day.

Something is wrong with the Teric IMO, and I am not convinced it is the battery. IMO there is probably a memory leak or something that gets worse throughout the year. Either that or the batteries that they are getting are just junk.

 

[Joneill]

Two dives (approximately four hours) and about two weeks of sitting.

Those numbers should be within a few percent of each other. In a month or two it will start dropping dramatically 2-4% overnight.

Your iPhone requires charging every night because that is the natural usage cycle. You would be very annoyed that within the battery wear equivalent of a couple of months that it could barely do a half a day.

Something is wrong with the Teric IMO, and I am not convinced it is the battery. IMO there is probably a memory leak or something that gets worse throughout the year. Either that or the batteries that they are getting are just junk.

Thanks for clarifying. I do agree that there is something wrong with the Teric’s battery but, for the way I use it, getting a day or two of diving out of it before needing a recharge is all I need.

WRT to iPhones, I find after 2-3 years that the battery life goes to sh_t. My iPhone 11Pro does everything that I need it to but i’m effectively forced to upgrade due to deterioration of battery life (mine doesn’t last the whole day anymore).

Hopefully, the US does like the EU and forces the greedy manufacturers to design their phones to have replaceable batteries!

 

[tursiops]

Hopefully, the US does like the EU and forces the greedy manufacturers to design their phones to have replaceable batteries!

You mean, like my Samsung?

 

[Joneill]

You mean, like my Samsung?

Yup - except my phone is a company issued iPhone.

 

[Dan]

I only remember reading about YOUR antenna problems....so maybe it is a rare event? It is there something about the way you dive/wear the Teric/handle your gear that maybe makes you particularly vlunerable?

I was @scubadada dive buddy on that trip. We did pretty much the same thing (being careful in handling Teric) and mine worked just fine. I think the antennae was defective. He's just unlucky with Teric.

 

[O-ring]

IMO, you are on to something about the battery. I think there is something else going on, but haven't bothered putting any mental energy into trying to figure it out. In case there is a bored engineer reading the thread here is the part I find interesting about my Terics. They seem to act normally when in storage (normal being defined as maybe dropping 2-4% a week). Then take them diving (usually for me a LOB so like 20-30 dives over a 7-10 day period) and all of a sudden we're looking at 10-20% a week drop when I get home. Replace the battery and all back to normal. Go diving again and the massive storage drops start back up again after I get home and put them back into storage. The kicker is it doesn't happen every time. My first Teric has done this twice, but my second one is still showing normal 2-4% per week drops after I got back from a LOB in May. I have another one in a couple weeks so we'll see how it goes.

 

[stuartv]

IMO, you are on to something about the battery. I think there is something else going on, but haven't bothered putting any mental energy into trying to figure it out. In case there is a bored engineer reading the thread here is the part I find interesting about my Terics. They seem to act normally when in storage (normal being defined as maybe dropping 2-4% a week). Then take them diving (usually for me a LOB so like 20-30 dives over a 7-10 day period) and all of a sudden we're looking at 10-20% a week drop when I get home. Replace the battery and all back to normal. Go diving again and the massive storage drops start back up again after I get home and put them back into storage. The kicker is it doesn't happen every time. My first Teric has done this twice, but my second one is still showing normal 2-4% per week drops after I got back from a LOB in May. I have another one in a couple weeks so we'll see how it goes.

I have 2 Terics. They have both been updated/replaced 3 or 4 times each because of the battery issue.

My experience is pretty much as you described. They are totally fine for a while. And then, one day, they just go from 2% a week while stored to 20% a week.

I can't exactly correlate it to a usage pattern of sitting for weeks or months, then heavy ussage for a week, then back to sitting for weeks or months. I'm an instructor. I dive often. Almost every weekend. So, one of mine doesn't usually sit for weeks or months. My second one actually does sit for weeks or months at a time, and then will go through a period of usage like you described.

But, both of them keep having the same issues, even though they have very different usage patterns.

My suspicion is that it's something to do with how they take a charge. I just SUSPECT that if you always charge them until they are 90+% full, and never let them get to 100% and then just sit on the charger, they might last forever with no problems.

Both of mine need to be sent off for repair again. After this next time, perhaps I will attempt to start charging them as I just described and see how that works out.

 

[O-ring]

I have 2 Terics. They have both been updated/replaced 3 or 4 times each because of the battery issue.

My experience is pretty much as you described. They are totally fine for a while. And then, one day, they just go from 2% a week while stored to 20% a week.

I can't exactly correlate it to a usage pattern of sitting for weeks or months, then heavy ussage for a week, then back to sitting for weeks or months. I'm an instructor. I dive often. Almost every weekend. So, one of mine doesn't usually sit for weeks or months. My second one actually does sit for weeks or months at a time, and then will go through a period of usage like you described.

But, both of them keep having the same issues, even though they have very different usage patterns.

My suspicion is that it's something to do with how they take a charge. I just SUSPECT that if you always charge them until they are 90+% full, and never let them get to 100% and then just sit on the charger, they might last forever with no problems.

Both of mine need to be sent off for repair again. After this next time, perhaps I will attempt to start charging them as I just described and see how that works out.

I'll try to remember to help you test this theory after I get back from my next trip. Right now I have one discharging normally in storage and the other is exhibiting the rapid discharge problem after my trip in May. I was going to send the problem one in prior to my upcoming trip, but when I contacted Shearwater they had me charge it to 100% and then wait 48 hours. It dropped from 100% to 96% during that time and they replied that was "within the acceptable range for the computer" so I figured I would wait and see what it does after the next trip.

 

[Dan]

I just came back from Malpelo with @scubadada

I charged it up to 100% and turned it off after the last dive. Here’s what it shows today (below), 74% charge after 4 days (6.5% discharge / day). Should I send it out for battery replacement?

 

[lexvil]

I just came back from Malpelo with @scubadada

I charged it up to 100% and turned it off after the last dive. Here’s what it shows today (below), 74% charge after 4 days (6.5% discharge / day). Should I send it out for battery replacement?

View attachment 795139

That’s a lot of loss for 4 days, bump it to 100 again and see what happens over another 4 days.