# Fulbat NS40 +G · Lawn mower battery 12V 36Ah 335A

![Fulbat NS40 +G · Lawn mower battery 12V 36Ah 335A](https://bateriasonline.es/615-home_default/fulbat-ns40-plus-g.jpg)

> Fulbat NS40 +G: 36 Ah lawn mower battery, 335 A (EN), 195×126×221 mm, positive terminal on the left. Price on request: ask for a free quote.

**Category:** [Lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-ns40-plus-g
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-NS40 +G
- **MPN**: NS40 +G
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Lawn & Garden Ca/Ca |
| Application | Lawn mowers and garden machinery |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 36 Ah |
| Cold cranking amps (EN) | 335 A |
| Length | 195 mm |
| Width | 126 mm |
| Height | 221 mm |
| Weight | 10.2 kg |
| Polarity | Positive terminal on the left |

## Quick description

The Fulbat NS40 +G is a lawn mower battery with 12 V, 36 Ah and 335 A cold cranking current, measuring 195 × 126 × 221 mm, with the positive terminal on the left. If yours has the positive terminal on the right, you need the Fulbat NS40 +D.

## Description

## Where the Fulbat NS40 +G fits

The Fulbat NS40 +G is a starter battery for ride-on mowers and garden machinery: small, 12 V and with enough cranking power for single-cylinder engines. Check polarity and terminal type: garden machinery uses several formats.
The NS40 +G belongs to the Fulbat FULBAT Lawn & Garden Ca/Ca range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Inside the NS40 +G: lead-acid technology

The NS40 +G is a conventional lead-acid battery, with plates immersed in liquid electrolyte. Avoid leaving them discharged, as they sulphate, and charge them with a charger that cuts off or switches to maintenance when finished.

## Fulbat NS40 +G vs U1-9 Ca/Ca, NS40 +D and NS60 +G: differences

How the NS40 +G compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat NS40 +G (this one) | 36 Ah | 335 A | 195 × 126 × 221 | left | 10.2 kg |
| Fulbat U1-9 Ca/Ca | 28 Ah | 300 A | 195 × 130 × 180 | left | 7.4 kg |
| Fulbat NS40 +D | 36 Ah | 335 A | 195 × 126 × 221 | right | 10.2 kg |
| Fulbat NS60 +G | 45 Ah | 350 A | 236 × 128 × 222 | left | 12.6 kg |

- Fulbat U1-9 Ca/Ca: 8 Ah less, 35 A less cranking power, a different case (195 × 130 × 180 mm).
- If the positive terminal of your battery is on the other side, the one you need is the Fulbat NS40 +D (positive terminal on the right).
- Fulbat NS60 +G: 9 Ah more, 15 A more cranking power, a different case (236 × 128 × 222 mm).

## Equivalents and alternatives to the Fulbat NS40 +G

We have no other battery with exactly the dimensions and polarity of the NS40 +G. Browse the rest of our [lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) to compare close options.

## Part numbers and codes for the Fulbat NS40 +G

The NS40 +G is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | NS40 +G |
|---|---|
| Not to be confused with | Fulbat NS60 +G (45 Ah, 350 A), Fulbat NS40 +D (36 Ah, 335 A, positive terminal on the right) |

## Before ordering the NS40 +G, check this

- Cold cranking: 335 A (EN), equal to or higher than the original.
- With 36 Ah, the NS40 +G replaces an original battery of that capacity or slightly less.
- With the terminals facing you, the positive terminal of the NS40 +G is on the left.
- The NS40 +G needs 195 × 126 × 221 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Fulbat NS40 +G

### NS40 +G or U1-9 Ca/Ca: which one suits me?

Compared with the NS40 +G, the Fulbat U1-9 Ca/Ca has 8 Ah less and 35 A less cranking power. The NS40 +G cranks harder; the U1-9 Ca/Ca is only a good option if your original battery says 300 A or less. Mind the space: the U1-9 Ca/Ca measures 195 × 130 × 180 mm.

### Fulbat NS40 +G or NS40 +D: what is the difference?

Only the polarity: the NS40 +G has the positive terminal on the left and the NS40 +D the positive terminal on the right. Capacity (36 Ah), cranking power and dimensions are identical.

### How much does the Fulbat NS40 +G weigh?

10.2 kg, with 36 Ah of capacity. For reference, the Fulbat U1-9 Ca/Ca (28 Ah) weighs 7.4 kg.

## Other options if you are unsure about the NS40 +G

- [More lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [Full Fulbat catalogue](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat NS60 +D](https://bateriasonline.es/en/fulbat-ns60-plus-d) · 45 Ah, 350 A, 236×128×222 mm

---
*bateriasonline.es — Batteries and accessories · 2026-11-10*