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

![Fulbat NS40 +D · Lawn mower battery 12V 36Ah 335A](https://bateriasonline.es/612-home_default/fulbat-ns40-plus-d.jpg)

> Fulbat NS40 +D: 36 Ah lawn mower battery, 335 A (EN), 195×126×221 mm, positive terminal on the right. Ask for a no-obligation 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-d
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-NS40 +D
- **MPN**: NS40 +D
- **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 right |

## Quick description

The Fulbat NS40 +D 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 right. If yours has the positive terminal on the left, you need the Fulbat NS40 +G.

## Description

## Where the Fulbat NS40 +D fits

The Fulbat NS40 +D 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 +D belongs to the Fulbat FULBAT Lawn & Garden Ca/Ca range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat NS40 +D

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

## Fulbat NS40 +D vs U1R-9 Ca/Ca, NS40 +G and NS60 +D

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

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat NS40 +D (this one) | 36 Ah | 335 A | 195 × 126 × 221 | right | 10.2 kg |
| Fulbat U1R-9 Ca/Ca | 28 Ah | 300 A | 195 × 130 × 180 | right | 7.4 kg |
| Fulbat NS40 +G | 36 Ah | 335 A | 195 × 126 × 221 | left | 10.2 kg |
| Fulbat NS60 +D | 45 Ah | 350 A | 236 × 128 × 222 | right | 12.6 kg |

- Fulbat U1R-9 Ca/Ca: 8 Ah less, 35 A less cranking power, a different case (195 × 130 × 180 mm).
- The Fulbat NS40 +G is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the left.
- Fulbat NS60 +D: 9 Ah more, 15 A more cranking power, a different case (236 × 128 × 222 mm).

## What it means that the NS40 +D is lead-acid

The NS40 +D is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the NS40 +D needs no special registration: just connect it.

## What to look at before buying the NS40 +D

- The NS40 +D needs 195 × 126 × 221 mm of space: measure it with the hold-down clamp in place.
- Polarity of the NS40 +D: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Capacity of the NS40 +D: 36 Ah; the same as your current battery or slightly more is fine.
- The NS40 +D delivers 335 A cold cranking (EN standard); do not go below what your original battery states.

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

Look for any of these NS40 +D codes on your current battery or in the manufacturer's catalogue:

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

## Frequently asked questions about the Fulbat NS40 +D

### NS40 +D or U1R-9 Ca/Ca: which one suits me?

Compared with the NS40 +D, the Fulbat U1R-9 Ca/Ca has 8 Ah less and 35 A less cranking power. The NS40 +D cranks harder; the U1R-9 Ca/Ca is only a good option if your original battery says 300 A or less. Mind the space: the U1R-9 Ca/Ca measures 195 × 130 × 180 mm.

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

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

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

10.2 kg, with 36 Ah of capacity. For reference, the Fulbat U1R-9 Ca/Ca (28 Ah) weighs 7.4 kg.

## Keep comparing: alternatives to the NS40 +D

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

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