Introduction US Solid Battery Spot Welder USS-BSW00007

The newly designed U.S. Solid USS-BSW00007 battery spot welder is equipped with two super capacitors for energy storage and a power supply for pulse welding. Compared to a traditional AC transformer spot welder, it does not interfere with the electric circuit, which means no more tripping problems. The machine’s super energy-gathered millisecond pulse technology combines with a max welding power of 19.8 KW to provide a reliable welding eﬀect.

The new-added ‘AL-NI’ super power mode function provides a max welding current of 3.3 KA, 0.2mm pure nickel can be directly welded to the aluminum terminals of LiFePO4 battery, saving you the expensive cost of using aluminum-nickel composite strips.
The welder’s small size and light weight make it more portable than the bulky traditional spot welder. The well-designed machine crad and aluminum alloy housing provide a more powerful and reliable machine.
Equipped with the 73B/75A professional welding pen, 73S handle-push welding arm, ‘AT/MT’ two welding modes and 100-500ms time-delay welding function, this machine enables you to work more easily and eﬃciently. The low power-consumption technology enables you to use the device eﬃciently for 12 hours without heating problems.

Usage Scenario

Widely used in battery pack building & maintenance and common metal welding.
Fast welding&maintenance of lithium iron phosphate battery packs or ternary lithium battery packs for electric bicycle, hoverboard, swing car, electric tool, home appliance, etc.
Fast welding & maintenance of Ni-MH battery(nickel metal hydride battery).
Fast welding & maintenance of small battery packs for mobile power supply, flashlight, etc.
Fast welding of polymer batteries for model airplane, bluetooth earphone, cellphone, laptop, automobile data recorder, bluetooth tire pressure monitor, etc.
Fast welding of circuit board, battery connect strip(nickel/nickel plated), electronic components, hardware parts, lead wires, etc.
Suitable for common metal welding like stainless steel, iron, nickel, brass, titanium, molybdenum, etc.

Packing List

Main Machine x 1
Power Adapter x 1
Foot Pedal Switch x 1
73B Intelligent Welding Pen x 1
75A Separated-style Welding Pen(LFP battery) x 1
73S Handle-push Welding Arm x 1
Replacing Welding Pins for 73B x 1 pair
Replacing Welding Electrodes for 75A x 1 pair
Replacing Welding Pins for 73S x 2 pairs
Aluminum-nickel Composite Strips x 20 pcs
Pure Nickel Strips x 20 pcs

Product Diagram

Panel Diagram

U S SOLID USS-BSW00007 Battery Spot Welder - desply 1

U S SOLID USS-BSW00007 Battery Spot Welder - desply 2

Product Parameters

Model: USS-BSW00007
Power Adapter Input: AC 100-240 V 50/60 Hz
Power Adapter Output: 15 V 2-3 A
Machine Input: DC 15 V 2-3 A
Machine Charging Time: 5-15 minutes
Output Welding Voltage: 5.6-6 V
Output Welding Current: 500-3300 A(pulse)
Maximum Welding Power: 19.8 KW
Maximum Welding Energy: 2381
Pulse Time: 0.2-20 ms
Pulse Time(Welding Power) Adjustment Range: 0-99t
Welding Mode: AT/MT
Pulse Delayed Time: 20ms/100-500ms(settable)
Welding Thickness of Nickel Plated: 0.05-0.5 mm
Welding Thickness of Pure Nickel: 0.05-0.45 mm
Product Size: 6.5×16.2×12.85 cm/2.6×6.4×5.1 inches
Product Weight: 2.1 kg/4.6 lbs
Package Size: 22.5×20.5×19.5 cm/8.9×8.1×7.7 inches
Package Weight: 3.5 kg/7.6 lbs

How to Use

Plug the power adapter into the ‘power supply’ on the side of the machine.
Plug the power adapter into a 100-240V AC power supply to charge the welder.
Press the ‘PWR/SET’ button to turn on the machine. The top half of the LED screen will display the ‘CH’ signal and the actual capacitor voltage alternately and intermittently. When the capacitor voltage is up to 5.6V, charging is completed and welding work can be started, the charing time is about 10 minutes.
Install the 73B/75A welding pen or 73S welding arm according to specific welding requirements, ensuring the connection is tight and secure.
Press the ‘PWR/SET’ button first to select the ‘tens place’ of the power grade number(the ‘place’ will blink once selected), you can adjust it between ‘0-9’ via ‘UP/DOWN’ two buttons. Press the ‘PWR/SET’ button second time to select the ‘ones place’ of the power grade number, in the same way, you can adjust it between ‘0-9’ via ‘UP/DOWN’ buttons. Press the ‘PWR/SET’ button third time to select the ‘AT/MT’ two welding modes, you can switch the mode via ‘UP/DOWN’ buttons. Press the ‘PWR/SET’ button finally to save all settings and quit the adjustment. (Tips: Try from low power grade to test the welding effect and set an appropriate power grade according to specific welding material and thickness)
Press the ‘PWR/SET’ button for 2 seconds to turn off the machine.
When not using the machine for a long time, unplug the machine and place it in an upside-down position, the red light will be on at the ‘power interface’ position, the machine will discharge automatically.

New Functions

Super Power ‘AL-NI’ Mode & Time-delay Welding

‘AL-NI’

Press the ‘LFP/NCR’ button to turn on the ‘AL-NI’ super power mode, the capacitor voltage will be charged up to 6V in this mode, 0.2mm pure nickel can be directly welded to the aluminum terminals of LiFePO4, LiPo, etc.

(Tips: 75A separated-style welding pen is especially designed for LFP battery welding)

Time-delay

Press the ‘DISCH DELAY’ button to switch the time-delay setting(set the ‘AL-NI’ super power mode and ‘AT’ welding mode firstly)
When 10 MI SS’ Signal is flashing, the pulse delay time is 100ms; When `SS’ signal is normally on, the pulse delay time is 200ms; When ‘MI’ signal is normally on, the pulse delay time is 300ms; When 10′ signal is normally on, the pulse time is 400ms;
Press the ‘DISCH DELAY’ button for 2 seconds when ‘LO MI SS’ signal is flashing. The ‘LO MI SS’ signal will be normally on and the pulse delay time is 500ms, you can press the ‘DISCH DELAY’ button again for 2 seconds to cancel this setting.

Tips:

Time-delay function only works under ‘AL-NI’ super-power mode & ’AT’ welding mode, other modes have a preset ﬁxed Sme-delay setting.
Dual pulses are released when Sme-delay setting is 500ms(only).

Description

Durability and effectiveness are key considerations in the construction of the US Solid Battery Spot Welder USS-BSW00007. The device's sturdy metal case guards against harm to its interior parts. With buttons for modifying welding settings and clear LCD displays, the user interface is simple to operate. The welder comes with a pair of sturdy electrodes and welding tips that guarantee reliable performance throughout several applications. It also includes a thorough handbook and online support materials to assist customers get going right away.

Usage Diagram

Plug the power adapter into the ‘power interface’ on the side of the machine and connect to a 100-240V AC power supply to charge the welder.
Press the ‘PWR/SET’ button to turn on the machine. The top half of the LED screen will display the ‘CH’ signal and the actual capacitor voltage alternately and intermittently. Machine is in charging state.
Install the 73B/75A or 73S according to speciﬁc welding requirements.
When ‘CH’ signal disappears and actual capacitor voltage is up to 5.6V, welding work can be started.
Press the ‘PER/SET’ button ﬁrst time to select the ‘tens place’ of the power grade number(the ‘place’ will blink once selected), you can adjust it between ‘0-9’ via ‘UP/ DOWN’ two buttons.
Press the ‘PWR/SET’ button second ?me to select the ‘ones place’ of the power grade number, in the same way, you can adjust it between ‘0-9’ via ‘UP/DOWN’ buttons.
Press the ‘PWR/SET’ button third time to select the ‘AT/MT’ two welding modes, you can switch the mode via ‘UP/DOWN’ buttons. Press the ‘PWR/SET’ button ﬁnally to save all senngs and quit the adjustment.
Press the ‘PWR/SET’ button for 2 seconds to turn oﬀ the machine when welding work ﬁnished.
When not using the machine for a long time, unplug the machine and place it at an upside-down position, red light will be on at ‘power interface’ position, the machine will discharge automatically.

U S SOLID USS-BSW00007 Battery Spot Welder - machine

Super Power ‘AL-NI’ Mode & Time-delay Welding

‘AL-NI’

Press the ‘LFP/NCR’ button to turn on the ‘AL-NI’ superpower mode, the capacitor voltage will be charged up to 6V in this mode, and 0.2mm pure nickel can be directly welded to the aluminum terminals of LiFePO4, LiPo, etc.

U S SOLID USS-BSW00007 Battery Spot Welder - button to turn

Time-delay

Press the ‘DISCH DELAY’ button to switch the timedelay senng(set the ‘AL-NI’ superpower mode and ‘AT’ welding mode ﬁrstly)
When ‘LO MI SS’ Signal is ﬂashing, the pulse delay time is 100ms;
When ‘SS’ signal is normally on, the pulse delay time is 200ms;
When ‘MI’ signal is normally on, the pulse delay time is 300ms;
When ‘LO’ signal is normally on, the pulse time is 400ms;
Press the ‘DISCH DELAY’ bu6on for 2 seconds when ‘LO MI SS’ signal is ﬂashing. The ‘LO MI SS’ signal will be normally on and the pulse delay ?me is 500ms, you can press the ‘DISCH DELAY’ bu6on again for 2 seconds to cancel this senng.

‘AT’ Mode – Automatic Welding Mode

U S SOLID USS-BSW00007 Battery Spot Welder - Automatic Welding Mode

Set the ‘AT’ welding mode
Press two welding electrodes on welding pieces with an enough and uniform pressure, welding pulse will be released automatically after a short delay.
Check the welding eﬀect

‘MT’ Mode – Foot Pedal Switch Controlling Mode

U S SOLID USS-BSW00007 Battery Spot Welder - Foot Pedal Switch

Set the ‘MT’ welding mode
Plug in the foot pedal switch
Press two welding electrodes on welding pieces with an enough and uniform pressurestep on the foot pedal switch,welding pulse is released after a short delay.
Check the welding eﬀect

Tips:

The 73B/75A welding pen and 73S welding arm are all compaSble with ‘AT/MT’ two welding modes.
Put enough pressure on two welding electrodes to get the welding pieces and welding surface fully contacted, otherwise the welding pieces will be penetrated and cause a
bad welding eﬀect.
‘MT’ welding mode is recommended for new user, after getting familiar with the welding operaSon(such as welding power setting and welding pressure adjustment), you can switch to the ‘AT’ automaSc welding mode to ﬁnish welding work quickly and eﬃciently.
In ‘AT’ quick welding mode, please aften check the welding eﬀect to avoid bad welding.

‘AL-NI’ Super Power Mode

The new-added ‘AL-NI’ super power mode is especially designed for the direct welding of pure nickel to the aluminum terminals of LiFePo4, LiPo, etc. 0.2mm pure nickel is supported with a max welding current of 3.3 KA, saving you the expensive cost of using aluminum-nickel composite strips.
(Tips: Do not set the ‘AL-NI’ mode when welding ba+ery such as 18650, too large current may cause large welding sparks and penetrate the ba+ery.)

Mode	Normal Mode	‘AL-NI’ Super Power Mode
Capacitor Voltage	5.6 V	6 V
Max Welding Current	2 KA	3.3 KA
Time-delay Welding	20ms	100-500ms
Dual Welding Pulses	N/A	Triggered when 500ms ?me-delay

Time-delay Welding Function

Appropriate delaytime senng allows the welding pressure adjustment and ensure a good welding eﬀect.

U S SOLID USS-BSW00007 Battery Spot Welder - Welding Function

Installation of Machine Base

The machine should be inserted into the base vertically.
Machine with 75A positioned in the base.
The machine base helps to prevent movement during welding work

U S SOLID USS-BSW00007 Battery Spot Welder - machine base

73B Intelligent Welding Pen

U S SOLID USS-BSW00007 Battery Spot Welder - Intelligent Welding Pen

Welding pressure can be adjusted by rotating the knob. The adjustment range is 600-1200g.
Distance of two welding pins can be easily adjusted by turning the screws.The adjustment range is 3-7mm.
The level of two welding pins canalso be adjusted easily by turning the screws.
Spot welding indicator light
Push-down welding function – plug the wire to the ‘foot control’ of machine, set the welding mode to ‘MT’ welding mode. Push down the welding pen to trigger the output pulse
16/25 square two types copper wires can be selected. The default type is 16 square copper wire.

Replacement of 73B Welding Pins

Unscrew the head
Take down used pins
Replace new pins
Screw the head

75A Separated-style Welding Pen

U S SOLID USS-BSW00007 Battery Spot Welder - Welding Pen

75A Usage Notice

Never contact the two welding electrodes
Never contact the battery Cpositive and negative terminals at the same time
Correct Operation

Replacement of 75A’S Welding Electrodes

U S SOLID USS-BSW00007 Battery Spot Welder - Welding Electrodes

Tips: regular replacement of welding electrodes are needed for opSmal welding eﬀects.

73S Handle-push Welding Arm

U S SOLID USS-BSW00007 Battery Spot Welder - Welding Arm

Installation of 73S welding arm

Install the handle
Unscrew the lid
Take down the lid
Tighten the retaining screws
Recover the lid

Replacement of 73S’ welding pins

U S SOLID USS-BSW00007 Battery Spot Welder - Replacement

Unscrew the welding head
Take down the used pins
Replace with new welding pins
Screw the welding head

Tips: regular replacement of welding pins are needed for opSmal welding eﬀects.

Setup Guide

Use these procedures to operate Welder USS-BSW00007:

Make sure all the parts are in the welder by unpacking it.
Attach an appropriate electrical socket to the power wire.
Depending on the kind of battery cells you are using, modify the welding duration and current.
Make sure the battery cells are firmly in place between the welding points.
To begin the welding operation, press the welding button.

Troubleshooting Table

Error Type	Possible Causes	Solutions
Weak Welding	1.Welding pins/welding pieces are not clean 2. Welding electrodes abrasion 3.Welding material is not supported or too thick 4.Capacitor voltage lower than 5.6 V 5. Low pressure applied on welding pieces 6. Different pressure applied on two electrodes 7.Poor conductivity of electrodes	1. Clean oxides /stains on welding pins/welding pieces 2. Replace new welding electrodes 3. Ensure the welding material and thickness is supported 4.Wait the machine charged fully 5.Increase the welding pressure 6. Apply uniform welding pressure on two electrodes 7. Plug in electrodes firmly
‘MT’ mode not working	Foot pedal switch is broken	Replace new foot pedal switch
‘AT’ mode not working	Welding material is not supported	Confirm the welding material is supported
‘E01¹ Error Notice	1.Electrodes touch together 2.Welding pins/welding pieces are not clean	1.Keep welding pins/copper wires separated 2.Clean oxides /stains on welding pins/welding pieces
‘E02’ Error Notice	1. Step the foot pedal too fast 2.The foot pedal is stuck or broken	1.Do not step the foot pedal too frequently 2. Repair or replace the foot pedal switch
Large Welding Spark	1.Welding pins/welding pieces are not clean 2. Low pressure applied on welding pieces 3. Different pressure applied on two electrodes 4. Set the power grade too high	1.Clean oxides/stains on welding pins/welding pieces 2. Increase the welding pressure 3. Apply uniform welding pressure on two electrodes 4.Set down the power grade

For ques+ons cannot be solved by this table, please contact us at service@ussolid.com for help
Usage Notices

Gold, silver, copper and jewelry cannot be welded.
Do not set the welding power grade too high, extreme welding current will cause large sparks and penetrate the battery.
Never contact the two welding pins/electrodes, otherwise the machine will be damaged.
Never contact the battery positive and negative terminals at the same time.
The machine needs to be kept plugged in for work.
For safe transport, machine has been discharged to the lowest voltage before leaving the factory. Before the ﬁrst use, charge the machine for 5-15 minutes, when capacitor voltage is up to 5.6 V, welding work can be started.
It is normal for some sparks to occur during welding work, please wear goggles and keep a safe distance.
When not using the machine for a long time, disconnect the power and foot-control lines, place the machine at an upside-down position. Red light will be on at the ‘power supply’ position, which means the machine is discharging automatically. The discharge process will take 20-24 hours and red light will be oﬀ when discharge is ﬁnished.

Tips:

The internal auto-triggering discharge switch will make normal light sounds when moving the machine, which is not the abnormal sound of machine breakdown.
0.2 A constant discharging current ensures a safe discharge process and the machine will not get heated.

Only charge the machine with the original power adapter. Otherwise the
machine may not be charged or may break.
‘MT’ mode is recommended for new user and the ‘AT’ welding mode is suitable for high-eﬃcient welding work when familiar with the welding process.
Apply appropriate pressure on welding pieces according to diﬀerent material and thickness.
Put enough pressure on two welding electrodes to get the welding pieces and welding surface fully contacted, otherwise the welding pieces will be penetrated and cause a bad welding eﬀect.
Apply enough and uniform pressure on two welding electrodes to avoid bad welding eﬀect and large sparks.
keep welding pieces clean (no oxides, stain) to avoid bad welding.
Clean oxides on the welding pins/electrodes regularly and replace them when necessary. This ensures good electric conductivity to get an optimal welding eﬀect.
The lubricating oil can be smeared on welding pins/electrodes to prevent oxidizing.
Keep welding pins long enough for pulling out later.
Plug in ﬁrmly when replacing new welding pins/electrodes for good electric conductivity.
Only use the original welding pins/electrodes from U.S. Solid.
Do not take part and modify the machine. Doing so may cause a short circuit and ﬁre danger.
Do not use the machine if lacking related experience and knowledge.
Do not use the machine in inﬂammable, explosive or wet environments.
Keep the product out of reach of children.

One-Year Warranty

U.S. Solid warrants your battery spot welder to be free from defects in materials or workmanship under normal use and service for one year from the date of original purchase.

Pros & Cons

Pros

Precise control over welding parameters.
Compact and lightweight design.
Energy-efficient with high-efficiency transformer.
Safety features like overheat protection and emergency stop button.
Affordable price point.

Cons

Limited to spot welding; not suitable for other types of welding.
May require some learning curve for optimal use.
No built-in cooling system; requires proper ventilation.

Customer Reviews

The US Solid Battery Spot Welder USS-BSW00007 has received high marks from customers for its dependability and simplicity of operation. Both experts and do-it-yourselfers like its accuracy in welding battery cells and its pricing. It could take some time to adjust to the device's settings and functionality, though, according to some customers.

A few people thought the handbook was a little confusing.
Overheating did occur occasionally, although it was usually the result of misuse or inadequate ventilation.

	The actual capacitor voltage is 5.5 V.
	The actual welding current is 2.8 KA. The ‘SW’ signal will light up instantly when welding pulse is released.
	The welding power is set at 25t (0-99t range), the pulse time is Sms (20ms max). The welding mode is ‘AT’ automatic welding mode.
	‘LO MI SS’ signal flashing – 100ms time-delay setting.
	‘SS’ signal normally on – 200ms time-delay setting.
	‘Ml’ signal normally on – 300ms time-dealy setting.
	LO’ signal normally on – 400ms time-delay setting.
	‘LO MI SS’ signal normally on – 500ms time-delay setting.
	‘ E01’ – spot welding error. Keep welding pins/copper wires separated. Clean the oxides on welding pins or replace new welding pins.
	`E02′ – foot switch error. Check if the foot pedal switch is stuck or is always in closed state. Release the switch or replace a new one.

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