You made me look.
Apparently some degradation modes cause more "capacity fade" while others: more "power fade", i.e. the observed effects at .5% vs. 7% loads may well be different. They don't necessarily scale linearly either.
Teric owners, have you required repair or replacement service?
- Thread starter scubadada
- Start date
Please register or login
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
- Ability to post and comment on topics and discussions.
- A Free photo gallery to share your dive photos with the world.
- You can make this box go away
You made me look.
Apparently some degradation modes cause more "capacity fade" while others: more "power fade", i.e. the observed effects at .5% vs. 7% loads may well be different. They don't necessarily scale linearly either.
I had - what I thought was good luck - with my Teric bought back in December 2018. Had never bothered with AI until this summer and it didn't work. I sent the Teric to Dive Tronix expecting a ~$150 repair bill but they indicated it would be covered under warranty, apparently insufficient adhesive on the antennas in the earlier batches. Sounds great to me.
Computer arrived today and from what I can tell it looks to be a replacement. Computer wiped, new serial number, factory logs dated in May.
If that's the case, I'm quite impressed with the service on 5+ year old computer. Although after reading that some are on their 7th or 8th unit, I guess I shouldn't have been too surprised.
Computer arrived today and from what I can tell it looks to be a replacement. Computer wiped, new serial number, factory logs dated in May.
If that's the case, I'm quite impressed with the service on 5+ year old computer. Although after reading that some are on their 7th or 8th unit, I guess I shouldn't have been too surprised.
OP
- Messages
- 20,634
- Reaction score
- 20,172
- Location
- Philadelphia and Boynton Beach
- # of dives
- 1000 - 2499
As some of you know, I have had my eighth Teric since January 2024, after my seventh was replaced due to a broken antenna. As I have had 3 Terics replaced with bad batteries, I thought it would not hurt to follow this one closely. These are the results after nearly a year. The computer has been fully charged just 12 times while in storage. I have taken it on 7 dive trips with 94 dives (marked in yellow). After initially holding 100% charge for several days, that is no longer the case. Battery discharge in the 1st 48 hours has increased to consistently greater than 8%. Daily battery discharge has increased from a fraction of a % to 4-5% per day. The % battery decrease per dive is an imperfect measurement due to a number of variables. However, there has been no significant change in this parameter.
I have only recently shared this with Dive-Tronix and have not contacted Shearwater yet. I feel relatively confident with a little more than a year on warranty. To this point, I recharge the Teric while it is in storage when it gets down to around 20% or I am starting a new dive series. On dive trips, I simply recharge the computer when it needs it for additional dives.
I have only recently shared this with Dive-Tronix and have not contacted Shearwater yet. I feel relatively confident with a little more than a year on warranty. To this point, I recharge the Teric while it is in storage when it gets down to around 20% or I am starting a new dive series. On dive trips, I simply recharge the computer when it needs it for additional dives.
Rearviewmirror
Contributor
I think if mine kicks again (I'm only diving a handful of times per year at the moment) I might just ask them to replace it with a Tern TX.
OP
- Messages
- 20,634
- Reaction score
- 20,172
- Location
- Philadelphia and Boynton Beach
- # of dives
- 1000 - 2499
For one of the replacements, Shearwater offered to give me a Perdix, don't remember is it was an AI or a 2. I stuck with the Teric, I like the form factor and the floating north pointer. The Tern TX was not available at the time.
I'm only on my fourth Teric but have had similar experience. I haven't had the discipline to track it as closely as @scubadada but as I'm heading out on a liveaboard in early January, my plan is to be ready to charge it every evening. I have a Perdix as a backup (I bought it years before the Teric), but I too prefer the screen brightness and floating pointer of the Teric as my primary reference.
Hey, let's put a positive spin on this. Buy a Teric, never miss a dive (because of the computer), and get a free replacement every 2 years for life!
I am amazed by your patience. After I had to send my Teric in for battery problems the second time I quickly sold it and replaced it with another Perdix. I have personally never had a problem with a Perdix in well over 1000 dives.
mcohen1021
Contributor
My Teric has around 154 dives on it and 132 hours of use... Battery life is in the toilet and both my Teric and my wife's are on their way to Dive-Tronix soon before our next trip in May
Shearwater told me to turn off the AI and the compass to save on batteries and to charge it on slow charge rather than fast charge
Not sure if that's been said before but I wasn't about to scroll all the way back to look
I'm hoping these new batteries will last longer but it doesn't sound like you guys are giving me much hope
Shearwater told me to turn off the AI and the compass to save on batteries and to charge it on slow charge rather than fast charge
Not sure if that's been said before but I wasn't about to scroll all the way back to look
I'm hoping these new batteries will last longer but it doesn't sound like you guys are giving me much hope
Without any breakthroughs in Li-ion technology between then and now, new batteries will do better if the original ones came from a "bad batch" and the new ones come from a "good batch".
There's a number of charge-discharge cycles they are rated for, those are typically guesstimated for "slow" charging, and fast-charging will reduce it. Possibly drastically. Reducing the drain by turning things off will reduce the number of charge-discharge cycles and extend their life -- in "wall clock" time, not in the number of charge cycles.
Physical size of the battery matters and you shouldn't expect miracles from a watch-sized one.
Sorry.
There's a number of charge-discharge cycles they are rated for, those are typically guesstimated for "slow" charging, and fast-charging will reduce it. Possibly drastically. Reducing the drain by turning things off will reduce the number of charge-discharge cycles and extend their life -- in "wall clock" time, not in the number of charge cycles.
Physical size of the battery matters and you shouldn't expect miracles from a watch-sized one.
Sorry.
Similar threads
- Poll
- Poll
