We have had a Nexus system for 4 years. Garmin
bought them. Battery
lasts 3 years, but the mast
top unit only lasted 3 years too. Frankly, Garmin is clueless about this product. It took 4 shipments to solve what we thought was a battery problem, and each time we had to pay with a credit card for each shipment, to be refunded when we returned. They shipped us bad product, wrong product, extra product. You name it, finally we had to jury rid a black box to reprogram the replacement unit the sent. But now it works, and we did get our deposits back.
But really, Garmin support is clueless. However, the product DOES work, and works well.
Sent from my iPad
using Cruisers Sailing Forum