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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 7 to 10 working days |
High-discharge motorcycle starting batteries must deliver reliable cold cranking performance across a wide temperature range whilst resisting the vibration and orientation stresses common to two-wheeled applications. The Numax NTX20BS is an Absorbent Glass Mat (AGM) motorcycle battery rated at 12V and 18Ah, supplied complete with an acid pack for straightforward activation prior to first use.
Manufactured under the Numax Batteries range, the NTX20BS uses AGM construction in which the electrolyte is fully suspended within a fibreglass mat separator. This design eliminates free acid, provides low self-discharge, and supports the cyclic demands of start-stop-capable systems though fitment suitability for start-stop applications should be confirmed against the product label before installation.
The battery measures 175mm 87mm 154mm (L W H including terminal) and carries a cold cranking amps (EN) rating of 250A. Terminal type 2 is fitted with hold-down code B00 and polarity code 1 (positive terminal to the left when viewed from the front). Weight is 5.86 kg. The NTX20BS is a direct cross-reference for the widely specified YTX20-BS fitment code, covering a broad range of large-capacity motorcycle and ATV applications.
The NTX20BS is part of a comprehensive Numax motorcycle battery range. Related variants include the NTS14BS, NTS16BS, NTS20LBS, and others covering the majority of motorcycle battery sizes in current production.
This product is covered by a 1-year warranty, providing assurance of dependable service life under everyday operating conditions.
Standard delivery: 13 working days within UK mainland. 30-day returns.
NUMAX motorcycle batteries offer great performance at a budget price. The range is vast covering almost every size of bike battery ever made. Each NUMAX motorcycle battery comes complete, either with an acid pack or factory sealed.
Key Feature:optimised for motorcycles and two-wheelers, ensuring consistent ignition power, rapid recharge capability, and stable energy supply for compact high-performance engines and accessory systems.
Uses:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
Fitment Warning:You must check your current battery against the specifications of this battery before ordering to ensure that this is the correct battery for your vehicle. Check battery technology, dimensions, terminal type, polarity, capacity (AH) and cranking performance (CCA). We cannot guarantee correct fitment under any circumstances.
| Brand | Numax Batteries |
|---|---|
| Voltage | 12V |
| Capacity AH (C20) | 18Ah |
| Cold Cranking Amps (EN) | 250A |
| L × W × H | 175mm × 87mm × 154mm |
| Warranty period | 1 Year |
| Weight (Kg) | 5.86 |
| Capacity AH (C5) | |
| Capacity AH (C10) | |
| Capacity AH (C100) | |
| Marine Cranking Amps (MCA) | |
| Watt-Hours (WH) | |
| Length (mm) | 175 |
| Width (mm) | 87 |
| Height Inc. Terminal (mm) | 154 |
| Terminal Placement | 1 |
| Terminal Type | 2 |
| Hold Down | B00 |
| Case Size | |
| ETN Number | |
| TTNR |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Expert Guidelines for Preserving Your Heavy Equipment Battery Heavy machinery, including forklifts, bulldozers, and excavators, relies on robust batteries to minimize downtime and maximize operational availability. These batteries must endure even more challenging conditions than typical automotive batteries. Moreover,...
Standard Delivery: £7.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |
|---|---|
| PRODUCT NUMBER | ETX20CH-BS |
| Voltage | 12 |
| Capacity (AH) | 18 |
| Cold Cranking Amps (EN1) | 230 |
| Length | 150 |
| Width | 90 |
| Height | 160 |
A. The Numax NTX20BS is a 12V battery with a capacity of 18Ah (rated at C20). It delivers a cold cranking amps (EN) rating of 250A, making it suitable for larger motorcycle and ATV engines.
A. The NTX20BS is a direct replacement for the YTX20-BS fitment code. This is a widely used reference across multiple motorcycle manufacturers and model years, so if your vehicle specifies a YTX20-BS, the NTX20BS is the Numax equivalent.
A. The NTX20BS is supplied with an acid pack and requires activation before first use. Follow the instructions provided with the acid pack carefully, ensuring the electrolyte is fully absorbed before fitting and sealing the battery.
A. The battery measures 175mm in length, 87mm in width, and 154mm in height including the terminal. It weighs 5.86 kg. Confirm these dimensions against your vehicle's battery compartment before ordering.
A. The NTX20BS uses terminal type 2 with polarity code 1, meaning the positive terminal is positioned to the left when the battery is viewed from the front. Hold-down type is B00. Always verify polarity markings on the battery before connecting.
A. The AGM technology used in the NTX20BS supports start-stop applications in principle; however, compatibility must be verified against the product label before installation. Not all motorcycle start-stop systems are identical in their battery requirements.
A. The NTX20BS uses Absorbent Glass Mat (AGM) construction. The electrolyte is immobilised within fibreglass mat separators, eliminating free liquid acid. This provides low self-discharge, good vibration resistance, and the ability to be mounted in orientations other than fully upright.
A. The NTX20BS is covered by a 1-year manufacturer's warranty against defects in materials and workmanship under normal operating conditions. Retain your proof of purchase for any warranty claim.
A. Yes. The Numax motorcycle battery range covers the majority of battery sizes currently in use. Related variants available on PartsForMachines include the NTS12BS, NTS14BS, NTS16BS, and NTS20LBS, among others. Use the fitment code or dimensions from your existing battery to identify the correct replacement.
A. Standard delivery is 13 working days within UK mainland. A 30-day returns policy applies. The NTX20BS is dispatched as a standard parcel. Please note that batteries containing acid must be handled in accordance with courier guidelines; ensure the acid pack has not been activated prior to return if a return is required.
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