Standard Flip-Top Battery Vent Cap


#2050 Battery Vent Cap


  • The flip-open top allows quick inspection & filling
  • The flip-top rotates 360° for easy positioning
  • No need to remove the vent cap from the battery
  • No more dropped, misplaced, or lost battery caps
  • Acid-proof rubber seal
  • Standard 1/4-turn bayonet style mount

This battery vent cap is available in 4 models. The only difference between them is the height and the diameter of the interior. To help you choose the one you need, each model is described below.

#2050 This is our most popular model, and it works well for most applications.

#2050CE This model is taller than the #2050. Further, the extra height helps to prevent acid spills due to battery motion when installed in golf carts or forklifts.

#2050C This model has a larger opening for easier filling and level checking. In addition, the extra height helps to prevent acid spills.

#2050EX This is our tallest model. Thus, it gives the most protection from potential spills. But due to its tall height, it may not fit where space is limited.

You may also compare all 4 models by viewing the part drawing.

Quantity Discounts

Part NumberQuantityPrice
"500 +Contact Us
"500 +Contact Us
"500 +Contact Us
"500 +Contact Us
To buy this battery vent cap, select a part number in the drop-down box below. Then enter the quantity and select the Add to cart button. Then select the Checkout button that appears at the top left.

PayPal seal

Part #: N/A Category:



  • The ergonomic design lets you check the fluid levels without removing the cap from the battery. This stops fatigue and lowers the risk of carpal tunnel syndrome.
  • The snap-fit design of the flip-top cap lets you rotate it in any direction. This feature is crucial where space is tight between cells and terminals.
  • Reduces the amount of time spent in the inspection and filling process. No need to remove the vent cap. Just flip open the cap, insert the filler nozzle, and pull the trigger.
  • Reduces electrolyte leakage. The strainer basket helps to reduce fluid loss during use or charging and allows the liquid to drain back into the cell.
  • All components are precision molded to ensure quality and long life.
  • Fits all single-cell battery watering guns with nozzle diameters up to 3/4″. This model saves you time and expense when servicing versus a standard vent cap.
  • The standard bayonet mount will fit most forklifts, golf carts, and floor scrubber batteries.

For more information on how to select the best vent cap model for your battery, please visit our FAQ page.

Additional information

Weight 0.03 lbs
Dimensions 2.0 × 1.38 × 1.3 in
Part #

2050 (standard), 2050CE (medium), 2050C (medium), 2050EX (tall)

Related Products…

icon-angle icon-bars icon-times