







🔋 Stay Powered, Stay Ahead: Know Your Battery’s Health at a Glance!
The Battery Tender 081-0157 Voltage Indicator is a compact, easy-to-use 12V battery tester featuring a high-resolution LCD display and intuitive LED charge indicators. Designed for quick connection to vehicle ring terminals, it provides precise voltage readings with ±0.1V accuracy, helping professionals and enthusiasts monitor battery health effortlessly and avoid unexpected downtime.





























| ASIN | B00DJ5KE9A |
| Best Sellers Rank | #89,962 in Automotive ( See Top 100 in Automotive ) #405 in Battery Chargers |
| Brand | Battery Tender |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,771) |
| Date First Available | June 21, 2013 |
| Exterior | Painted |
| Global Trade Identification Number | 00734357815702 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item dimensions L x W x H | 3.01 x 1.16 x 0.57 inches |
| Item model number | 081-0157 |
| Manufacturer | Battery Tender |
| Manufacturer Part Number | 081-0157 |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 11.6 |
| Model | 081-0157 |
| OEM Part Number | 900674 |
| Power Source | Battery Powered |
| Product Dimensions | 3.01 x 1.16 x 0.57 inches |
| Style | with LCD Voltage Display |
| UPC | 734357815702 |
J**B
Good product
Works well
M**H
Accurate and easy to use...
Awesome and accurate tool to check the juice in your batteries....easy to check scooter batteries too.
K**N
Perfect for checking batter voltage
Excellent unit for checking the battery voltage with the Deltran quick connect in have installed on my motorhome chassis battery. Much more handy than using a multi-meter.
S**.
Works great
Worked as discribed. Easy to use makes it easy to check the battery with out taking seat off
F**.
but unnecessary for me
It does work as advertised. It is a bit small, but readable and the price is reasonable. I have it connected continuously to my portable generator’s battery along with a Battery Tender. I use it to be sure that Battery Tender is working, charging, and properly connected. I have checked it against other voltmeters and it is right on at about 12.5 volts and about 1/10 of a volt high at 13.1 volts, it is within it advertised accuracy. The LEDs are a cute feature, but unnecessary for me, since I am interested in a more exact voltage reading. The LEDs may be useful for someone that does not understand the voltage readings. I would give it 5 stars, but after two months I have developed an intermittent problem. Sometimes, when I push the button it not does work. After a few pushes on the button, the display does come on. Right now, I am not sure if a failure is imminent. It is in a cold garage, so the cause could be the cold. I intend to buy a spare in case this one fails. I will give it one more chance, since I have found Deltran products to be very good. There are not many voltmeters of this type on the market. I do have a Volt Minder, a similar product, which is being used for another application. The Volt Minder is superior to this unit. However, I did not use it since the Volt Minder it is a lot more expense, and it is designed to connect through a cigarette lighter. It would take a bit more finesse to connect it to my generator.
E**S
Meter
Works great and just plug into the battery tender and it works. Lets you know the battery voltage and the charging voltage when you increase the rpms.
H**E
Helpful Diagnostic Tool
I got this in conjunction with a larger project; installing a second battery in my truck. The battery isolator I used was supposed to regulate charging from a range roughly ~11.5-14.5VDC. So I wired in a pigtail to plug this indicator into, and I’m happy to say the indicator and the isolator agreed on the operating range. Occasionally I plug it to monitor the battery health. It’s relatively inexpensive and compact.
J**K
Works as it should.
Very accurate, I double checked the reading with 2 other volt meters I have. I'm happy with this little gauge, it's small enough to leave in my windshield bag to double check voltage of my motorcycle battery on a trip.
V**M
es lo que es! Funcionamiento correcto
J**Z
Me pareció muy funcional, como revisar el aire de las llantas siempre es bueno conocer el estado de tu batería, y si es necesario recargar con el tender, antes de tus viajes.
F**W
This is spot-on and just what you need to see your battery volts. It fits and works very well on my 2013 HD sportster. Handy to place under seat or carry in jacket pocket .
F**O
Misura con valori esatti la batteria,le dimensioni sono piccole,lo si puo' portare e mettere ovunque. La consegna e' puntuale,che dire?Ottimo acquisto!!!
V**C
This tool is a excellent addition for checking the battery's strength on hard to reach power sports batteries. It's affordable, convenient, easy to use. A needed accessory.
Trustpilot
3 weeks ago
2 months ago