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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 |
Larger-displacement motorcycles demand a battery capable of sustained cranking performance without sacrificing cycle life or maintenance convenience. The Numax NTS51913 is a factory-sealed AGM (Absorbent Glass Mat) motorcycle battery rated at 12V and 21Ah, delivering 230 CCA (EN) to meet the cold-start demands of touring, cruiser, and adventure bikes that specify a 51913-format cell.
Numax engineered this battery using AGM technology, in which the electrolyte is permanently suspended within a tightly compressed glass-mat separator. This construction eliminates free acid, prevents electrolyte stratification, and allows the battery to be shipped and installed without any pre-filling procedure. The sealed, maintenance-free design means no topping-up of distilled water and no risk of acid spillage during fitment or in service. Numax's motorcycle range is noted for broad application coverage and accessible pricing without compromising on fundamental AGM performance characteristics.
The NTS51913 measures 183 mm (L) 79 mm (W) 171 mm (H inc. terminal) and weighs 6.04 kg. Terminal layout is Type 2, polarity code 0 (positive left), and hold-down classification is B00. No acid pack is required; the battery arrives fully sealed and ready to install. There are no cross-reference codes supplied for this SKU; buyers should confirm fitment against OEM battery dimensions and terminal specification before ordering. AGM technology supports start-stop systems verify compatibility against the vehicle manufacturer's label.
This battery is available within an extensive Numax AGM motorcycle range. Related SKUs include 005LAGM, 027AGM, 005RAGM, 012AGM, 053AGM, 054AGM, 055AGM, 057AGM, and NTS16CLB, covering a wide spread of formats and capacities for different motorcycle applications." The NTS51913 is supplied with a 1-year warranty covering defects in materials and workmanship under normal 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) | 21Ah |
| Cold Cranking Amps (EN) | 230A |
| L × W × H | 183mm × 79mm × 171mm |
| Warranty period | 1 Year |
| Weight (Kg) | 6.04 |
| Capacity AH (C5) | |
| Capacity AH (C10) | |
| Capacity AH (C100) | |
| Marine Cranking Amps (MCA) | |
| Watt-Hours (WH) | |
| Length (mm) | 183 |
| Width (mm) | 79 |
| Height Inc. Terminal (mm) | 171 |
| Terminal Placement | 0 |
| 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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Compare With Similar Items
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| Technical Specification | ||||
|---|---|---|---|---|
| PRODUCT NUMBER | LTS16CLB | LTS51913 | LSLC22-12G | |
| Voltage | 12 | 12 | 12 | |
| Capacity (AH) | 21 | 21 | 22 | |
| Cold Cranking Amps (EN1) | 230 | 230 | ||
| Terminal Type | 2 | 2 | F6 | |
| Length | 175 | 183 | 180 | |
| Width | 100 | 79 | 76 | |
| Height | 175 | 171 | 167 | |
| Show More | ||||
A. The Numax NTS51913 measures 183 mm in length, 79 mm in width, and 171 mm in height including the terminal. It weighs 6.04 kg.
A. The NTS51913 is rated at 230 CCA measured to the EN standard, making it suitable for reliable cold-start performance on larger-format motorcycles.
A. The NTS51913 is factory sealed. It arrives fully charged and ready to install with no acid filling, no activation, and no maintenance required.
A. The battery uses a Type 2 terminal configuration with polarity code 0, meaning the positive terminal is positioned on the left-hand side. The hold-down classification is B00.
A. AGM technology is generally capable of supporting start-stop applications. However, compatibility must be verified against the vehicle manufacturer's specification label before fitting, as not all start-stop systems accept every AGM variant.
A. The NTS51913 is a 12-volt battery with a rated capacity of 21Ah (C20), providing sustained energy delivery for larger motorcycle platforms.
A. No cross-reference codes are supplied for this SKU. Buyers should confirm fitment by comparing OEM battery dimensions, terminal type, and polarity specification directly against the data provided for this product.
A. The NTS51913 is backed by a 1-year manufacturer's warranty covering defects in materials and workmanship under normal operating conditions.
A. Related SKUs available from PartsForMachines include 005LAGM, 027AGM, 005RAGM, 012AGM, 053AGM, 054AGM, 055AGM, 057AGM, and NTS16CLB, offering a broad range of formats to suit different motorcycle applications.
A. The NTS51913 is despatched via Standard Parcel. Standard delivery is 13 working days within UK mainland. A 30-day returns policy applies.
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