2 module harness for Volt modules
Due to supply constraints this item is OUT OF STOCK. You can back order but we don’t anticipate shipping until late spring 2020.
This harness, in combination with a “3” harness, allows you to tie 4 Volt modules together at the cell level. Note, these harnesses are for BMS balancing and cell level safety. They are not for carrying load current.
Like the “3” harness the advantage of the harness is that the cells are then supported by addtional cells in parallel. I know it sounds confusing, but you’re taking a battery module that is 3P12S (three in parallel and then 12 in series) and tieing them together at the cell. Thus your pack becomes 6P or 9P or, with this harness added, 12P/12S. Larger parallel strings means an even more stable battery pack.
We recommend tying modules together in groups of 3. So buy your “3” harness first. You can then add the “2” harness to increase to 4 modules.
At this point the string is considered full. You don’t want the cabling to get too long. You can then add strings. Up to 3 strings supporting 12 12S modules is considered a complete pack. Supporting 25kwh of SESS.
- Easy installation.
- OEM similar main plug.
- 2 8S JST plugs allows the harnesses to be used with Volt 6, 12 and 16S modules. The 8S JST-HX plug also ensures compatibility with a wide range of BMS. Including the BlueBIRD BMS sold by BobolinkSolar.
- Huge time saving over manually wiring BMS harness.
- Note: only similar battery sizes can be used with the harness. Ie. You can tie together 6S modules or 12S modules but not both.
Why are the harnesses so essential to a lithium battery pack?
The main thing that hurts lithium is out of balance cells. So the module harness makes sure that each cell has a partner helping it along! Huzzah.
The harness also allows you to quickly and easily tie in a BlueBIRD BMS. Our BlueBIRD BMS monitors your cells and if an imbalance appears it adjusts the voltage to ensure your pack is completely balanced.
You can also use other BMS. Repinning your harness may be required.