A compact, trigger-style hand pump that fills golf cart and deep-cycle battery cells to the correct level every time -- no guessing, no spills, no filter required. Designed for smaller banks of 24 cells or fewer.
Overfilling or underfilling lead-acid batteries is one of the fastest ways to shorten their life. The Flow-Rite BA-MS-634 takes the guesswork out of routine maintenance. Its demand-activated hand pump delivers water directly to each cell and stops at the correct fill level automatically, protecting your plates and keeping electrolyte concentration balanced.
This model is built for lighter-duty use -- think a single 6-volt golf cart bank, a small set of RV house batteries, or any flooded lead-acid application with 24 cells or fewer. If you need to service a larger bank, Flow-Rite offers higher-capacity models in the same product family.
Stops water flow automatically at the correct cell level -- prevents overfill damage.
Sized for golf cart banks, small RV battery sets, and similar light applications.
Ergonomic squeeze trigger for one-handed operation -- no batteries or electricity needed.
Lightweight design for users with pre-filtered or distilled water sources on hand.
The BA-MS-634 does not include an inline filter. This keeps the unit simple and lower in cost for owners who already use distilled water from sealed jugs or have a dedicated filtered water source. If your water supply is not pre-filtered, consider a Flow-Rite model that includes an integrated filter to protect cell internals from mineral deposits.
The BA-MS-634 is designed for flooded (wet cell) lead-acid batteries only. It is not intended for sealed AGM, gel, or lithium battery chemistries, which do not require water addition and have no removable vent caps.