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Deciding which battery you want may seem complicated at first, but a few simple steps will enable you to select the correct one for your machine.

All scooter / electric wheelchair batteries are 12 volt and are usually fitted in pairs giving a 24 volt output. It is recommended that when replacing batteries they are fitted in pairs.

The power output is marked in amp hours (Ah) on the side of the battery E.g. 12volt 35amp. The amp hour rate may vary slightly from different manufacturers for a similar size battery, therefore the critical thing is the physical size of the battery. The chart below shows approximate sizes in both millimetres and inches for each battery size. Within the product description on mobilitypitstop.com you will find the dimensions of each battery.

	Millimetres			Inches
Battery Ah	Length	Width	Height	Length	Width	Height
1.3Ah	97	43	59	3.82	1.69	2.28
2.2Ah	178	34	66	7	1.38	2.5
2.9Ah	79	56	106	3.06	2.19	4
3.4Ah	134	67	66	5.25	2.63	2.44
5Ah	90	70	108	3.54	2.76	4.21
8Ah	151	65	100	5.94	2.56	3.94
10Ah	151	65	114	5.94	2.56	4.61
12Ah	151	99	100	5.94	3.88	3.88
15Ah	151	99	100	5.94	3.88	3.88
18Ah	181	76	167	7.13	3	6.5
22Ah	181	76	167	7.13	3	6.5
27Ah	166	175	125	6.5	6.87	4.94
35Ah	195	131	181	7.68	5.16	7.13
40Ah	196	165	165	8	6.5	6.5
50Ah	196	165	165	8	6.5	6.5
55Ah	229	138	232	9	5.43	9.13
60Ah	259	169	178	10.25	6.625	7
75Ah	260	168	232	10.25	6.61	9.13

The next thing you need to decide once you have identified which battery Amp hour you require, is whether you want a GEL battery or a sealed lead acid (SLA) battery.

Both batteries are sealed, non-spillable and maintenance free. The main difference between them is the performance/longevity. As the battery in a scooter or power chair is the only power source the battery is designed to work differently to other batteries, like car batteries for example.

A car battery is designed for starting the car, therefore it is required to produce a large amount of power immediately as you turn the key, and is then constantly trickle charged. A GEL or SLA battery is designed to give a constant flow of power over a longer period, and then to be recharged fully, this is called a cycle.

GEL batteries produce more cycles than SLA batteries and therefore they have the ability to last longer than SLA batteries. Below is a summary of the two types.

GEL Batteries (See our GEL Batteries)

Superior cycle life
Maintenance FREE
Sealed & Non-Spillable
Air Transportable
Recommended for power chair and everyday scooter users.

SLA Batteries (See our SLA Batteries)

Lower cost than Gel batteries
Maintenance FREE
Sealed & Non Spillable
Air Transportable
Recommended for light and occasional scooter users

Alternatively, see all our batteries.

Still have questions? Contact us and we'll do our best to help. Or, return to our Ask The Expert section.