Boat battery monitor system install#
Boat battery monitor system manual#
Boat battery monitor system series#
Boat battery monitor system free#

On many banks it may tend to correlate marginally, but don’t expect guestimates to be perfect. These are just rough guesstimates, for most, unless you have the capability to run a true capacity test. The next year I might remove another 3% – 8% off the capacity etc. So for the 100Ah battery I might initially program it at 95Ah’s so the owner is never actually drawing to 50% SOC that first year ( self protective feature). With traditional Ah counters, a trick many of us in the industry use is to start with a slightly lower programmed Ah capacity than the bank is rated for. The new Balmar SG200 does provide a state of health figure, and works quite accurately. It is up to you, the owner, to tell it the bank capacity and program for this as accurately as you possibly can. However, they have no clue about your banks physical Ah capacity or its actual state of health. Please be aware of this.Ĭoulomb or Ah counters count Ah’s very, very accurately. These devices are not plug & play and are only as smart as you make them. This is just one example where an Ah or Coulomb counter can become inaccurate in relation to the actual battery bank. You now draw 50% of 100Ah’s out of the battery, except the battery is only really 75Ah’s and you wind up at Īctually if you threw Peukert’s exponent into the mix you may actually be lower or higher depending upon the actual load at which it was drawn. Your battery, due to age and use, is now 75Ah’s. You had 100Ah programmed into the Ah counter. Inaccurate assumptions can lead to erroneous data: If your battery monitor is still programmed for a 100 Ah capacity, and you are drawing 50% of the assumed Ah capacity out of it, based on this 100Ah rating, you are really now drawing the bank to just 33% SOC.

As batteries age their capacity changes, it is an ever moving target, so the 100Ah battery you bought three years ago may now only be a 75Ah battery. The biggest problem with traditional Ah or Coulomb counters is keeping them accurate with the batteries physical condition.

Boat battery monitor system install#

When out cruising use absorption voltage.įACT: From the day you install your bank the physical Ah capacity is ever changing.

Boat battery monitor system manual#

If you have been at a dock at float voltage for multiple days then it is safe to assume you are full and a manual reset is fine. NOTE: Battery voltage should be at absorption level not a float voltage when performing a manual known-full reset. Net accepted current less than 1.5% of Ah capacity = ✓.Rule #1 for most tradittional Ah counters: Disable the “ auto-sync” feature and use manual “ known-full” re-sets. When not properly installed, and kept well calibrated, Ah counters can be horribly inaccurate… WHEN PROPERLY CALIBRATED – About 98% of Ah counters I come across are NOT properly calibrated/programmed. WHEN PROPERLY INSTALLED – About 90% of Ah Counters I come across are NOT properly installed & wired. When properly installed & properly calibrated they can extend the life of a battery bank. The battery monitor is a very useful tool for a boat-owner who has to survive on battery power. – Shop Victron Products Installing A Battery Monitor:

Boat battery monitor system free#

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Boat battery monitor system series#

Everything in this article is still relevant to the current series of BMV monitors. The 602 has been replaced by the BMV-7oo series. For me a carefree package.This article features the older Victron BMV-602. That means that I also have this security in many parts of the Croatian Adriatic. I also find it very gratifying that the network has been significantly expanded over the past two years. Thus, every owner gains significantly more security and does not need to worry about his property. I already told Kresimir during his survey that this technology should be mandatory for all boat owners who have a permanent berth in the marina. The time factor plays the decisive role here. This is done at an early stage and the marina employees can avoid major damage to the ship and, above all, to other ships. Marina and the boat owner immediately notice irregularities and receive an alarm message. For me as the owner, the additional safety aspect is also important when I am not on the ship. So the sensors have already paid off for me. Without the sensors or the app, I would not have noticed this and would have had to make an unnecessary investment in new batteries. I can keep an eye on everything at all times via the app, so I was able to see over the winter that my AGM batteries should be charged. I have been using Sense4Boat for two years.