Hangzhou Xinabo Intelligent Electromechanical Technology Co., Ltd is a Backpack Lithium Battery Pack manufacturer and the developer of the cordless tool family that sits inside our Engineering Construction Pipeline Connection Solutions programme. The pack is the mobile energy layer of that programme: it carries the capacity that keeps brushless grinders, saws, wrenches, rotary hammers, cutters and punchers working through a full shift on fire-protection, building-services and industrial pipeline sites where mains power is not available at the workface.
We build the pack around the tool list and the shift rather than around a single tool. Capacity, output interfaces, harness and sealing are selected together so that one pack can serve several tools across a working day.
Backpack Power Built for Cordless Pipeline and Construction Tools
As a Engineering Construction Pipeline Connection Solutions manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
Cordless tools remove the cable, but handheld battery packs reintroduce a different constraint: runtime. On a fire-protection retrofit or a plant shutdown, a grinder or a hydraulic cutter that stops mid-cut costs more than the pack it runs on. Our backpack format moves the energy off the tool and onto the operator's back, which allows a larger cell count without adding weight to the wrist.
The pack powers multiple 21V–60V tools simultaneously through multiple output interfaces, so a crew can move between a wrench, a grinder and a hole puncher without stopping to swap batteries. Runtime extends well beyond standard handheld packs, which is the purpose of the format.
Our Backpack Lithium Battery Pack Range
We supply the backpack pack in 20Ah and 30Ah builds using high-rate lithium-ion cells. Both builds share the ergonomic backpack structure, adjustable shoulder straps, multiple output interfaces and the fourfold protection circuit.
- 20Ah build — lighter wear load, suited to intermittent tools and shorter working windows.
- 30Ah build — extended runtime for high-draw tools and full-shift coverage.
- Output coverage — powers multiple 21V–60V tools simultaneously.
- Interfaces — multiple output ports matched to common lithium-ion tool connectors.
- Protection — overcharge, over-discharge, short circuit and overheat.
- Sealing — waterproof and dustproof construction for outdoor and dusty work areas.
- Carrying system — ergonomic backpack with adjustable shoulder straps for long-term wear.
- Tool compatibility — brushless grinders, drills, saws, wrenches and other battery-powered equipment.
Matching the Pack to the Cordless Tool Family
Our Cordless Power Tools range is built as a system, and the backpack pack is the shared power source across it. The table below shows how each tool family behaves on site and what the backpack format contributes.
| Cordless tool family |
Duty pattern on site |
What the backpack pack contributes |
| Brushless Angle Grinder |
Continuous high draw during weld dressing and pipe preparation |
Sustained current without handheld pack changes |
| Brushless Circular Saw |
Short, heavy cuts in support and profile material |
Voltage headroom for torque under load |
| Brushless Electric Chainsaw |
Intermittent outdoor cutting, often off-road |
Portable capacity where no generator is available |
| Lithium Hydraulic Cutter |
High-peak hydraulic pumping cycles |
Peak current support for pump motors |
| Lithium-Ion Brushless Rotary Hammer |
Overhead anchor drilling, repeated short bursts |
Removes pack weight from the drilling hand |
| Lithium-Ion Brushless Wrench |
Repetitive bolting on flanges and supports |
Long tightening sequences on one charge |
| Lithium-Ion Hole Puncher |
Punching brackets and pipe supports |
Consistent output across a bracket run |
| Lithium-Ion Spray Gun |
Finishing and touch-up work |
Shared power source with the tool set already on site |
Configuration Variables We Build To
Every pack order is assembled against the tool list, the shift pattern and the site environment. These are the variables we confirm before releasing a build.
| Configuration item |
What we supply |
Project input that drives it |
| Nominal capacity |
20Ah and 30Ah builds |
Shift length, tool mix, acceptable wear load |
| Output voltage coverage |
Multiple 21V–60V tools powered simultaneously |
Voltage classes present in the tool inventory |
| Output interfaces |
Multiple output ports for common lithium-ion connectors |
Connector type and number of tools run per shift |
| Cell specification |
High-rate lithium-ion cells |
Continuous current draw of grinders, saws and cutters |
| Protection circuit |
Overcharge, over-discharge, short circuit, overheat |
Charging practice and ambient site temperature |
| Carrying system |
Ergonomic backpack with adjustable shoulder straps |
Wear duration and PPE compatibility |
| Environmental sealing |
Waterproof and dustproof construction |
Outdoor, wet or dust-heavy work areas |
| Charging set |
Charger matched to pack capacity |
Charging window available between shifts |
Protection, Sealing and Site Safety
The fourfold protection circuit covers overcharge, over-discharge, short circuit and overheat, which are the four failure paths that matter when a pack is charged from a site supply and worn through a full shift. The waterproof and dustproof housing keeps the cell group and interface board protected during outdoor work and in dusty plant rooms.
Because the pack is worn rather than held, harness routing and cable management are part of the configuration. We confirm that the shoulder straps, output cable length and connector position suit the tools and PPE in use, so the operator is not working around a cable that pulls against the tool.
Wearing, Charging and Shift Planning
Runtime planning is a capacity calculation, not a guess. We work from the tool list, the duty pattern of each tool and the number of operators sharing a pack.
- List every cordless tool that will run from the pack, with its voltage class.
- Estimate continuous versus intermittent draw for each tool across the shift.
- Decide how many packs per crew and whether packs rotate between operators.
- Confirm the charging window and the number of chargers required to keep packs in rotation.
- Check harness fit against the PPE and clothing worn on site.
Quality Control, Documentation and Delivery Scope
Packs are assembled and functionally checked at our manufacturing base in Hangzhou, Zhejiang, China, where the same production discipline covers our Pipe Fabrication & Installation Equipment and cordless tool lines. Our certification file includes Machinery Directive and Electromagnetic Compatibility Directive attestation of conformity for the equipment range.
Delivery scope is confirmed per order and typically covers the pack, the matched charger, the harness assembly and the output cable set. Spare parts and maintenance support are available across the product range, and we provide operating and charging documentation with each shipment.
Information We Use to Configure Your Solution
Send the following and we can specify the pack build, interface set and charger quantity for your project.
- Tool inventory with voltage class and connector type for each tool
- Duty pattern and expected runtime per tool per shift
- Number of operators, packs per crew and rotation practice
- Site environment: indoor, outdoor, wet, dusty, ambient temperature range
- Charging supply available on site and the charging window between shifts
- Quantity split between 20Ah and 30Ah builds, and any branding or labelling requirement
- Delivery destination and packaging preference
Frequently Asked Questions
What capacities do you supply, and how do we choose between them?
We build the backpack pack in 20Ah and 30Ah versions. The 20Ah build suits intermittent tools and shorter working windows, while the 30Ah build covers high-draw tools such as grinders, saws and hydraulic cutters across a full shift. We confirm the choice from your tool list and duty pattern.
Can one pack run tools of different voltages?
Yes. The pack powers multiple 21V–60V tools simultaneously through multiple output interfaces, so a crew can run a wrench, a grinder and a hole puncher from the same unit. We match the interface set to the connectors in your tool inventory.
What protection is built into the pack?
Each pack carries fourfold protection against overcharge, over-discharge, short circuit and overheat, together with a waterproof and dustproof housing. This combination is what allows the pack to be charged from a site supply and worn outdoors or in dusty plant rooms.
Is the pack compatible with our existing cordless tools?
The multiple output interfaces are compatible with most lithium-ion tools on the market, including our Lithium-Ion Brushless Wrench and the rest of the cordless range. Send the connector type and voltage class of each tool and we will confirm the matching interface.
How is the pack worn during overhead or confined work?
The ergonomic backpack structure uses adjustable shoulder straps so the cell weight sits on the back rather than in the hand, which matters for overhead anchor drilling and repetitive bolting. Cable length and connector position are confirmed against the tools and PPE used on your site.
What is included in a shipment and what support follows?
Delivery scope is confirmed per order and typically includes the pack, matched charger, harness assembly and output cable set, with operating and charging documentation. Spare parts and maintenance support are available across our product range.
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