donovan 0 #1 April 13, 2004 Can anyone tell me if battery change for a cypress is two years from date of manufacture or two years from installation/activation? Suppose there is several months from dom to installation, which date does the two year change start from? Quote Share this post Link to post Share on other sites
GravityGirl 0 #2 April 13, 2004 DOM ~~~~~~~~~~~~~~~~~ Peace and Blue Skies! Bonnie ==>Gravity Gear! Quote Share this post Link to post Share on other sites
KCJumper 0 #3 April 13, 2004 Battery life starts from when you plug them in. They can sit on the shelf for sometime and the clock starts when you install them. On the other hand your maintenance schedule starts from DOM. So they may not line up in some cases. Patrick Quote Share this post Link to post Share on other sites
tombuch 0 #4 April 13, 2004 Check the Cypres site at http://www.cypres-usa.com/cyp16.htm The quote below is from their FAQ and while written in 1995, it remains on their site today. While the replacement cycle is technically listed as being from date of installation, it is important that the battery be fresh. I would avoid installing old batteries that have been on the shelf for a while. QuoteWhen does the battery need replaced? Airtec requires that the batteries be replaced the first time the low battery error code (8998/8999) is encountered during self-test, or every two years, or every 500 jumps, which ever of these occurs first. Note that the two year period is from the date of last battery change. The date of the last battery change can be found on an orange label on the cable end of the black plastic processing unit box. As this is packed inside the reserve container, it is necessary for riggers to check out the battery date as part of the reserve inspection / repack. Further, Airtec recommends to replace the battery if the two year period will be up before the next scheduled repack. This avoids the cost of an extra repack to just change the battery. Note that your rigger can change the battery, the CYPRES unit does not have to be sent to Airtec or SSK. It is a good idea for all riggers to have some extra CYPRES batteries in stock to avoid extra delays and shipping costs. When stored as instructed the batteries have a long shelf life; the two year period does not start until they are installed. Tom Buchanan Instructor (AFF, SL, IAD, Tandem) S&TA Senior Parachute Rigger Author JUMP! Skydiving Made Fun and EasyTom Buchanan Instructor Emeritus Comm Pilot MSEL,G Author: JUMP! Skydiving Made Fun and Easy Quote Share this post Link to post Share on other sites
skymedic 0 #5 April 13, 2004 QuoteDOM Negative Ghost Rider, A quick look at the Cypres manual show's the following.... "CYPRES 1 works with a battery that is calculated to last for approx. two years or approx. 500 jumps. The battery is a high-energy density type, with long life, low self-discharge and has a long shelf life (approximately 3 years), as long as it is stored in a cool, dry location (below 68°F). It consists of two round cells, and does not contain heavy metals. Each battery which has been installed in CYPRES 1 has to be replaced after 2 years at the latest. In case that the rig or CYPRES 1 will be out of use the battery should be removed and disposed of after 2 years to prevent possible damage. The battery can be replaced by the user, however, the procedure is tricky and demands considerable attention to detail. The 2-year maximum period does not start until the battery is installed for the first time. After installing a battery that has been stored for more than 6 months, it is recommended that the CYPRES 1 be turned on and off 4 times in succession to “activate” the battery. " I hope this helps the original poster...I think it's important to prevent disinformation from being spread. also here is a better Cypres Site. it is Airtec's own... http://www.cypres.cc/Sites/englisch/Frameset01_engl.htm Marc otherwise known as Mr.Fallinwoman.... Quote Share this post Link to post Share on other sites
