Most solar energy systems in the USA are operational only as long the sun is out. Off Grid or Hybrid Solar Energy systems not only use energy collected during the day, but also uses the stored solar energy in your battery bank for when the sun isn’t shining, at night, and in the event of a natural disaster or during electrical grid outages. Need a complete off grid, grid tie, or hybrid PV system for your home or business? Don’t worry we have you covered! Not only are we the battery experts, we’re solar experts too! Zeiss Battery offers some of the most competitive pricing on Solar panels, inverters, charge controllers, roof racking and of course batteries. Don’t waste your time and money buying something you don’t need or too many of something you do need! We’re a true one stop shop and ensure you the lowest shipping cost possible. We also offer free system design to all of our customers from our on staff Solar Engineers to ensure your PV system works as advertised so you know your getting exactly what you pay for. If you’re not satisfied, we’re not satisfied. It doesn’t matter if your system is 1KW or 1MW, if your order is a pallet or a container load, shipping domestic or international; We get it right the first time all at the lowest price.
Chub Cay Project
Zeiss Battery was contacted by a Solar Contractor who designed and installed an off-
Cell Shrinking Sulfation
Upon being contacted by the Solar Contractor for the Chub Cay project Zeiss surmised there was a sulfation issue. All lead acid cells (batteries) are subject to sulfation in as little as 24 hours of non use. The rate of self discharge of an AGM is about 3% per month (the higher the temperature the quicker the self discharge). So under the supposition the cells were manufactured in China and they took a boat ride to the main distribution center in the US, then to the battery distributor, then to the Solar Contractor, and then finally to Chub Cay. It’s safe to say that the batteries were sitting idle for 4-
Is your Smart Charger smart enough?
There was more to Chub Cay then just the state of charge of the batteries as they moved down the supply chain to the end user. There had to be another culprit, but what? Zeiss knowing that chargers are one of the major culprits of premature battery failure suspiciously eyed the top shelf Xantrex WX6048 inverter/smart charger. With Zeiss knowing the cells were sulfated from the beginning he knew they were about to open a whole other can of worms. Estimating that the cells were operating at about 75% capacity when they were installed the Xantrex WX6048 would not be able to break through the sulfation causing the cells to lose performance immediately. The problem starts when the smart charger does not compensate for the sulfation causing the charging profiles/charging algorithms to be completely out whack. The charger can’t operate properly when it thinks the cells are at 95-
There is a happy ending
Upon completing the Chub Cay project all systems were a go, and the owner couldn’t have been more thrilled. His solar energy system was running as designed, supplying his island home with quiet, green, and free energy. No more loud, smelly and expensive generator running through the night or when the sun wasn’t shinning. No more wondering if an expensive fuel delivery was going to be delivered on time. Not to mention being the envy of every home owner on the island. Zeiss was able to fully optimize the Chub Cay solar energy system first by use of the impact charger to condition the batteries, clear sulfation and balance the three strings of batteries. By balancing the 3 strings of batteries Zeiss was to keep all cells in the strings in family (cells discharge and charge at the same rate). The only changes Zeiss made to the actual system was to the Xantrex’s charging profile to properly match the cells needs and to add a finishing charger to pick up the slack when the Xantrex gets overloaded and decides to bail. With a semi-
Just because AGM and Gel battery manufactures put a sticker on there product saying “maintenance free” do not believe it. Nothing could be further from the truth. All that really means is you don’t have to add water to the cells. All batteries in a solar energy system should under go some sort of semi-