OneAndes 40V 5.0Ah 18650 Lithium-Ion Battery Pack with LED Fuel Gauge | High-Capacity for Cordless Mowers, Blowers & Chainsaws

Product Description

Some battery packs hide behind thick, bulky plastic shells. The OneAndes 40V 5.0Ah 18650 Lithium-Ion Battery Pack takes a different approach—it’s wrapped in a tough, industrial-grade blue shrink-wrap PVC that keeps the pack lightweight, compact, and surprisingly durable. This isn’t just any plastic film; it’s the same high-temperature, puncture-resistant material used in professional power tool battery rebuilds, chosen specifically to eliminate unnecessary bulk while providing excellent insulation and cell protection.

Inside that sleek blue sleeve sits a carefully assembled array of 20 premium 18650 lithium-ion cylindrical cells, arranged in a 10S2P configuration. That delivers a genuine 37.0V nominal voltage (40V Max) and a full 5.0 amp-hours of capacity—enough energy to power a cordless mower through half an acre, keep a leaf blower roaring at full throttle, or drive a chainsaw through hardwood without the chain speed collapsing. The cells are mechanically secured in a rigid plastic cell holder and connected with thick pure-nickel strips, then the entire assembly is wrapped tightly in that blue PVC heatshrink for a solid, unified structure.

Even with the shrink-wrap construction, this pack is packed with smart features. A built-in LED fuel gauge with four bright indicators is positioned at the top, easily accessible through a transparent window in the wrap. Just press the button and you instantly see remaining capacity—no guesswork, no mid-job surprises. The onboard Battery Management System (BMS) provides full cell-level protection: overcharge, over-discharge, over-current, short-circuit, and temperature cutoffs. All of this circuitry is secured to the cell pack and protected by the shrink-wrap layer and an insulating fish paper barrier.

The blue shrink-wrap design also means this battery is lighter than many hard-case competitors—at just around 1.25 kg, it keeps your handheld tools maneuverable while still delivering heavyweight power. The slide-on interface uses reinforced copper-alloy terminals and a secure latch, ensuring a stable connection that resists vibration. Whether you’re powering a mower, blower, or chainsaw, this battery’s honest, no-excess-material build gets the job done without adding bulk.

Key Features

• High-Capacity 5.0Ah – 180Wh of energy for extended runtime with cordless mowers, blowers, and chainsaws.

• Premium 18650 Cells – Quality-graded cylindrical cells provide consistent power and long cycle life.

• 40V Max Output – 10S2P configuration, nominal 37.0V, compatible with most 40V Max slide-on tool systems.

• Blue PVC Shrink-Wrap Construction – Lightweight, impact-resistant, and electrically insulating outer wrap; used widely in professional battery rebuilds.

• LED Fuel Gauge – 4-LED indicator visible through the wrap, shows charge level at a button press (100%–25%).

• Advanced BMS Protection – Monitors individual cell voltage and temperature, protecting against overcharge, over-discharge, over-current, short-circuit, and extreme heat.

• High Discharge Rate – Engineered for the continuous high current draw of mowers and the burst demands of chainsaws.

• Compact & Lightweight – Weighs approximately 1.25 kg; reduces tool fatigue during overhead or handheld use.

• Wide Compatibility – Fits many 40V Max outdoor tools with slide-on battery interface: mowers, blowers, chainsaws, string trimmers, and more.

• No Memory Effect – Lithium-ion chemistry allows opportunity charging at any state without capacity loss.

Parameters

Applications

• Cordless Lawn Mowers – Run time up to 30+ minutes in moderate conditions. Suitable for most 40V push and self-propelled mowers.

• Cordless Leaf Blowers – Sustained high airspeed and volume; ideal for clearing driveways, patios, and large lawns.

• Cordless Chainsaws – Delivers the burst current for 12"–16" bar cutting; maintains chain speed through hardwoods.

• String Trimmers & Brush Cutters – Light enough for balanced handling, strong enough for thick weeds.

• Hedge Trimmers & Pole Saws – Keeps weight manageable for overhead operation while providing all-day energy.

• Other 40V Max Tools – Check your tool’s voltage and connector style; fits most standard slide-on 40V interfaces.

FAQ

1. Is the shrink-wrap durable enough for outdoor work?
Absolutely. The blue PVC heat shrink we use is thick, puncture-resistant, and specifically designed for battery pack assembly. It provides excellent electrical insulation and holds the cells tightly together. As with any battery, avoid puncturing the wrap with sharp objects and don’t drop it repeatedly onto sharp rocks. Under normal yard-work conditions, it performs reliably.

2. Will this pack fit my 40V tool?
It fits most 40V Max tools that use a slide-on battery system. Compare the connector shape and latch position with your original battery. The blue shrink-wrap pack has the same standard slide-interface dimensions. If your tool matches, it should click in securely.

3. Can I see the fuel gauge easily through the wrap?
Yes. There is a transparent window in the heat shrink exactly over the LED fuel gauge and button. It’s easy to read even in sunlight.

4. Does the shrink-wrap affect heat dissipation?
The thin PVC layer does not trap excessive heat. Under heavy use the battery may become warm, which is normal. The BMS will disconnect if temperatures exceed safe limits. Allow the pack to cool before recharging.

5. How should I care for this shrink-wrapped battery?
Avoid cutting or tearing the wrap. If it ever becomes damaged, stop using the battery and have it re-wrapped or inspected. Store in a dry, cool place at about 50% charge. Don’t expose to prolonged direct sunlight, which can degrade the PVC over time.

6. Is charging time the same as a hard-case battery?
Yes. A standard 2A charger takes about 2.5–3 hours; a 4A fast charger cuts that to around 1.5 hours. Always use a compatible 40V lithium-ion charger.