lithium battery pack have long been used to extend the duration of ocean deployments, but at the cost of greater risk because they are capable of storing so much more energy than alkaline packs. Because they have traditionally represented a safety risk, Lithium packs have also been much harder to ship. NortekUSA’s LP175 lithium pack is a new design, produced by Tadiran Batteries. This pack retains high total capacity, yet improves its safety, which enables you to ship the pack without restrictions.
lithium battery pack cells use a new packaging design that makes the pack far more stable and safer than most other lithium packs. The LP175 has been tested with a rigorous (and expensive) series of tests, following standards set by the United Nations. By passing these tests, the LP175 qualifies for unrestricted shipping, which means that you can ship it the same as you would standard alkaline packs.
lithium battery pack The change in battery voltage with time, shown in Figure 1, is characteristic of the LP175 battery packs. This includes the slow rise in voltage over most of the deployment and the pause as the voltage falls at the end of the pack’s life. The small change over most of the battery’s life is not sufficiently large to enable you to estimate the remaining life--changes associated with water temperature and mean current can be larger. However, the beginning of the first rapid voltage drop indicates that the pack has around 15% of its life left, and when the final voltage drop begins, there is only a few percent left. |
