--- product_id: 54576215 title: "OTC 4619 Professional Battery Hydrometer" brand: "otc" price: "Bs.2041" currency: BOB in_stock: true reviews_count: 5 category: "Otc" url: https://www.desertcart.bo/products/54576215-otc-4619-professional-battery-hydrometer store_origin: BO region: Bolivia --- # Measures specific gravity 1.100-1.300 Built-in thermometer for precise temp correction Flexible rubber tip for hard-to-reach cells OTC 4619 Professional Battery Hydrometer **Brand:** otc **Price:** Bs.2041 **Availability:** ✅ In Stock ## Summary > ⚡ Charge smarter, not harder — the pro’s choice for battery mastery! ## Quick Answers - **What is this?** OTC 4619 Professional Battery Hydrometer by otc - **How much does it cost?** Bs.2041 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/54576215-otc-4619-professional-battery-hydrometer) ## Best For - otc enthusiasts ## Why This Product - Trusted otc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ergonomic Access:** Flexible rubber tip lets you test batteries still installed in vehicles—no hassle, no fuss. - • **Durable & Reliable:** Glass and rubber construction backed by a one-year limited warranty means this tool is built to last. - • **Precision Charge Insight:** Accurately gauges battery health by measuring electrolyte density, so you never get caught off-guard. - • **Instant Battery Confidence:** Quickly diagnose battery charge state to avoid unexpected breakdowns and stay ahead of maintenance. - • **Temperature-Adjusted Accuracy:** Built-in thermometer ensures your readings are spot-on regardless of weather or engine heat. ## Overview The OTC 4619 Professional Battery Hydrometer is a precision tool designed to measure the specific gravity of battery electrolyte, providing an accurate state-of-charge reading. Featuring a built-in thermometer for temperature compensation and a flexible rubber tip for easy access to hard-to-reach battery cells, it combines durability with professional-grade accuracy. Ideal for vehicle maintenance professionals and enthusiasts aiming to prevent battery failures and optimize performance. ## Description Battery Hydrometer Review: Just what we needed to test battery acid level! Review: Me permite reparar baterias indicando el nivel de peso del acido. Si deciden comprarlo cuidenlo mucho ya que tanto el pesaacidos como la botella son de vidrio. cuando los adquirí tuve que realizar el cambio ya que me llegó quebrado el pesaacidos. ## Features - Hydrometers test the state of charge of a battery cell by measuring the specific gravity (density) of the electrolyte - the greater the concentration of sulfuric acid, the more dense the electrolyte becomes - OTC's Professional Battery Hydrometer displays a batteries specific gravity (density) on an easy-to-read float with a scale ranging from 1.100 to 1.300 - Built in thermometer indicates what must be added or subtracted from the float reading to arrive at an accurate specific gravity reading for each battery cell - Flexible rubber tip offers easy access to even hard to reach battery cells while the battery is still in the vehicle - Glass and rubber construction; One year limited warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0050SFVHO | | Brand | OTC | | Bullet Point | Built in thermometer indicates what must be added or subtracted from the float reading to arrive at an accurate specific gravity reading for each battery cell, Flexible rubber tip offers easy access to even hard to reach battery cells while the battery is still in the vehicle, Glass and rubber construction; One year limited warranty, Hydrometers test the state of charge of a battery cell by measur… | | Colour | Red | | Customer Reviews | 4.1 4.1 out of 5 stars (1,089) | | Global Trade Identification Number | 00731413039898 | | Is Assembly Required? | No | | Item Dimensions | 9.7 x 36.3 x 1.5 centimetres | | Item Package Quantity | 1 | | Item Weight | 113 g | | Lamp Warranty | Parts | | Manufacturer | OTC | | Manufacturer Part Number | 4619 | | Measurement Type | Specific Gravity | | Model Number | 4619 | | Package Weight | 0.18 Kilograms | | Power Source | Battery Powered | | Product Warranty | Limited lifetime warranty | | Size | Pack of 1 | | Specification Met | REACH | | Style Name | Modern | | Title | OTC 4619 Professional Battery Hydrometer | | UPC | 731413039898 | | Unit Count | 1.0 count | ## Product Details - **Brand:** OTC - **Colour:** Red - **Item weight:** 113 g - **Power source:** Battery Powered - **Style:** Modern ## Images ![OTC 4619 Professional Battery Hydrometer - Image 1](https://m.media-amazon.com/images/I/51Etxrz6afL.jpg) ## Questions & Answers **Q: Is the tip thin enough to go into a motorcycle battery? I bought a cheapie from my auto store that was too wide to fit!** A: I don't currently have a motorcycle, but I see a problem. I the tip size may be an issue, but I would have greater concern with the volume of acid to be drawn up. The glass tube is fairly wide and you need to draw enough acid that to indicator float actually floats. This is about 3 inches. I suspect that this may be more than the total volume of a cell. If you think the volume is OK, you can insert a piece of small plastic tubing in the hydrometer and reach into the battery with that. **Q: will this hydrometer work for both car batteries and deep cycle batteries?** A: Yes as long as you have access to the acid in the battery. **Q: My hydrometer only reads fair for all of the cells on six different batteries. I have another older and different type that reads good. Is mine bad?** A: Batteries are hard to figure out at first. The best advice is probably to compare one or all cells to the others on one battery. Comparing one cell of one battery to one cell of another is not good. I would first read up on batteries in general through facebook or an RV website. The hydrometer is a good unit, but the glass tube is very fragile. Mine was received with the upper portion of the glass crammed into the rubber stop inside the bulb. I had to break it off evenly and repair it with some silicone gasket material. I think you will be impressed if you compare it to one of the plastic ones. **Q: Your ad states a proud heritage; does this mean this item is specifically made in the United States?** A: I believe this item is made by Bosch, which has a proud heritage, but is not made in the USA. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on 24 October 2024* Just what we needed to test battery acid level! ### ⭐⭐⭐⭐⭐ Review *by G***Z on 15 August 2020* Me permite reparar baterias indicando el nivel de peso del acido. Si deciden comprarlo cuidenlo mucho ya que tanto el pesaacidos como la botella son de vidrio. cuando los adquirí tuve que realizar el cambio ya que me llegó quebrado el pesaacidos. ### ⭐⭐⭐⭐⭐ Review *by M***E on 29 January 2026* Great product and its exactly the same as one I've had for 45 yrs. The old bulb got hard over the years of use and cracked and became none fictional. ## Frequently Bought Together - OTC 4619 Professional Battery Hydrometer , Red - LubriMatic 75-033 Battery Filler w/ Rubber Spout, red, 1 Count (Pack of 1) - EZRED SP101 Battery Hydrometer, Factory --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.bo/products/54576215-otc-4619-professional-battery-hydrometer](https://www.desertcart.bo/products/54576215-otc-4619-professional-battery-hydrometer) --- *Product available on Desertcart Bolivia* *Store origin: BO* *Last updated: 2026-05-23*