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A Full Battery and a Flat One Look the Same. $5.58 Tells Them Apart.

Posted by John on Nov 08, 2026

A Full Battery and a Flat One Look the Same. $5.58 Tells Them Apart.

A battery looks the same full or flat. The JX-4615N-A3 smart battery monitor reads the difference out in red LED, and $5.58 buys it.

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THIS WEEK AT PARTSMINE · IN STOCK · SHIPS FAST NOV 8, 2026
Prices and stock as of Nov 8, 2026. Click any part for today's.
JUST LANDED  fresh off the bench
4 AVAILABLE
JX-4615N-A3 Smart Battery Monitor Level Indicator Red LED Voltmeter New
$5.58
JX-4615N-A3 Smart Battery Monitor Level Indicator Red LED Voltmeter New
Standex Magnetic ORD324-1015 Reed Switch 1 Form A SPST-NO NOS
71¢
Standex Magnetic ORD324-1015 Reed Switch 1 Form A SPST-NO NOS
5 AVAILABLE
Atmel Dream SAM9773 Wavetable Synthesizer IC TQFP-80 New Old Stock
$9.07
Atmel Dream SAM9773 Wavetable Synthesizer IC TQFP-80 New Old Stock
8 AVAILABLE
Raychem GTCA26-301M-R05 300V 5kA Gas Discharge Tube Surge Arrester NOS
$2.14
Raychem GTCA26-301M-R05 300V 5kA Gas Discharge Tube Surge Arrester NOS
5 AVAILABLE
Texas Instruments TLC5940NT 16-Channel LED Driver DIP-28 Unused NOS
$4.14
Texas Instruments TLC5940NT 16-Channel LED Driver DIP-28 Unused NOS
10 AVAILABLE
Texas Instruments TLC5940PWP 16-Channel LED Driver HTSSOP-28 Unused
$2.14
Texas Instruments TLC5940PWP 16-Channel LED Driver HTSSOP-28 Unused
1 AVAILABLE
Mini-Circuits ZFL-1000LN+ Low Noise Amplifier 0.1-1000 MHz NOS
$69.14
Mini-Circuits ZFL-1000LN+ Low Noise Amplifier 0.1-1000 MHz NOS
Vishay TLCR5800 620nm 5mm Red Clear Through-Hole LED Ultra-Bright NOS
39¢
Vishay TLCR5800 620nm 5mm Red Clear Through-Hole LED Ultra-Bright NOS
CR2032 CR2025 Vertical Coin Cell Battery Holder 3-Pin PCB Mount New BS-5
59¢
50¢ ea at 10 or more
CR2032 CR2025 Vertical Coin Cell Battery Holder 3-Pin PCB Mount New BS-5
1.25" Snap-In Bushing Nylon Panel Wire Grommet 22MP12515 Black NOS
54¢
45¢ ea at 10 or more
1.25" Snap-In Bushing Nylon Panel Wire Grommet 22MP12515 Black NOS
10 AVAILABLE
Texas Instruments CC2541F128RHAT BLE RF SoC 128KB Flash VQFN-40 NOS
$4.14
Texas Instruments CC2541F128RHAT BLE RF SoC 128KB Flash VQFN-40 NOS
1 AVAILABLE
Helipot Model 54 10K Ohm Trimmer Potentiometer Beckman Instruments NOS
$6.07
Helipot Model 54 10K Ohm Trimmer Potentiometer Beckman Instruments NOS
1 AVAILABLE
Intel A80486DX-33 i486DX 33MHz CPU Bent Pins Scrap Gold Recovery Used
$22.86
Intel A80486DX-33 i486DX 33MHz CPU Bent Pins Scrap Gold Recovery Used
2 AVAILABLE
PartsMine A-8484 Digital Battery Monitor White LED DC 7V-55V Voltmeter New
$5.58
PartsMine A-8484 Digital Battery Monitor White LED DC 7V-55V Voltmeter New
9 AVAILABLE
Panasonic ECQ-B2332JF 3300pF 200V Film Capacitor 5% Radial NOS
$1.14
Panasonic ECQ-B2332JF 3300pF 200V Film Capacitor 5% Radial NOS
1 AVAILABLE
AMD Am486DE2-66V8TGC 66MHz Microprocessor Gold Scrap Bent Pins Used
$14.86
AMD Am486DE2-66V8TGC 66MHz Microprocessor Gold Scrap Bent Pins Used
BENCH ODDITY OF THE WEEK
Intel Pentium Pro 200MHz 256K Socket 8 CPU KB80521EX200 SY013 Used
The Workstation Chip That Inherited the Bomb Tests

In 1992 the United States stopped testing nuclear weapons. The warheads did not go away. Keeping them now meant knowing them, and knowing them meant arithmetic.

Intel built ASCI Red for the job, built entirely of common commercially available components. Every node held two 200 MHz Pentium Pro processors. The whole machine ran 9,298 processors and took up almost 1,600 square feet.

Three quarters of it measured 1.06 teraflops, a world record. It was the first supercomputer past one teraflop on LINPACK. It stayed the fastest on the TOP500 list from June 1997 to June 2000.

The bomb work went to a workstation chip.

This is the same 200 MHz Pentium Pro, offered as-is: used, untested, bent pins and all. Recover the gold, or squirrel it away as a collector relic.

More chips headed for the refiner: E-Scrap for Precious Metal Recovery →

MOST POPULAR  what other builders are buying
Xicon 291-10 10 Ohm 1/4W 5% Carbon Film Resistor Through-Hole Unused NOS
14¢
11¢ ea at 10 or more
Xicon 291-10 10 Ohm 1/4W 5% Carbon Film Resistor Through-Hole Unused NOS
5mm UV Ultraviolet Blacklight Through-Hole LED Clear Lens A-1155 New
39¢
33¢ ea at 10 or more
5mm UV Ultraviolet Blacklight Through-Hole LED Clear Lens A-1155 New
Unisonic Technologies C2328A NPN Silicon Epitaxial 1W Transistor Y19626
16¢
Unisonic Technologies C2328A NPN Silicon Epitaxial 1W Transistor Y19626
Durel D388A Electroluminescent Lamp & White LED Driver IC
$1.39
$1.18 ea at 10 or more
Durel D388A Electroluminescent Lamp & White LED Driver IC
WON'T FIND ANYWHERE ELSE  (probably)
1 AVAILABLE
Avago Tech ADNS-3080 Optical Navigation Sensor IC 1600 CPI DIP-20 NOS
$7.14
Avago Tech ADNS-3080 Optical Navigation Sensor IC 1600 CPI DIP-20 NOS
1 AVAILABLE
Baumer FlexFlow PF20H Sanitary Flow Sensor 4-20mA NOS PF20H-11.010.C042.20
$248.14
Baumer FlexFlow PF20H Sanitary Flow Sensor 4-20mA NOS PF20H-11.010.C042.20
1 AVAILABLE
Tactic Model 140 NDT Ultrasonic Transducer Manipulator, UHF Mount, Used
$159.97
Tactic Model 140 NDT Ultrasonic Transducer Manipulator, UHF Mount, Used
10 AVAILABLE
Allied Radio 861 1-Lug Phenolic Terminal Strip Right Angle Mount NOS
$1.14
Allied Radio 861 1-Lug Phenolic Terminal Strip Right Angle Mount NOS
ALMOST GONE  fun while they lasted
1 LEFT
Genuine Sony, C403 NPN Silicon Resistor, Gold Leads
$2.18
Genuine Sony, C403 NPN Silicon Resistor, Gold Leads
1 LEFT
Tepro TM 5W 2 Ohm 0.1% Aluminum Chassis Mount Wirewound Resistor NOS
$1.19
Tepro TM 5W 2 Ohm 0.1% Aluminum Chassis Mount Wirewound Resistor NOS
1 LEFT
Motorola MJ480 NPN Power Transistor 40V 4A 5W TO-3 Can - New Old Stock
$1.79
Motorola MJ480 NPN Power Transistor 40V 4A 5W TO-3 Can - New Old Stock
1 LEFT
Sylvania / Philips ECG 1232 8W AF Power Amp IC, 5-Lead TO-220, NOS
$4.34
Sylvania / Philips ECG 1232 8W AF Power Amp IC, 5-Lead TO-220, NOS
RESTOCKED IN THE BIN  we ran low - but got more
PartsMine A-660 5mm Chrome Metal Panel Mount LED Bezel Assembly Unused
79¢
67¢ ea at 10 or more
PartsMine A-660 5mm Chrome Metal Panel Mount LED Bezel Assembly Unused
Single-Sided Copper Stripboard 93 x 55mm Prototyping Board 0.1 in Pitch New
$1.86
$1.58 ea at 10 or more
Single-Sided Copper Stripboard 93 x 55mm Prototyping Board 0.1 in Pitch New
PartsMine A-869 CR2032 CR2025 Coin Cell Battery Holder Through-Hole New
48¢
38¢ ea at 10 or more
PartsMine A-869 CR2032 CR2025 Coin Cell Battery Holder Through-Hole New
9V Battery Snap Connector Clip Hard Shell with Tinned Wire Leads NOS
51¢
43¢ ea at 5 or more
9V Battery Snap Connector Clip Hard Shell with Tinned Wire Leads NOS
BUY BY THE HANDFUL  the more you grab, the less each one costs
HCF4023BE STMicroelectronics Triple 3-Input NAND Gate, CMOS DIP-14, Unused
37¢
26¢ ea at 10 or more
HCF4023BE STMicroelectronics Triple 3-Input NAND Gate, CMOS DIP-14, Unused
MF-NSMF200-2 Bourns PPTC Resettable Fuse 2A Hold 4A Trip 6V 1206 NOS
37¢
27¢ ea at 10 or more
MF-NSMF200-2 Bourns PPTC Resettable Fuse 2A Hold 4A Trip 6V 1206 NOS
33 Ohm 1% Metal Film Fixed Resistor Axial Through Hole NOS 33ohm-R
51¢
38¢ ea at 10 or more
33 Ohm 1% Metal Film Fixed Resistor Axial Through Hole NOS 33ohm-R
7.5 Ohm 0.25W 1% Metal Film Axial Resistor NOS
51¢
38¢ ea at 10 or more
7.5 Ohm 0.25W 1% Metal Film Axial Resistor NOS
Shop everything →
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