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Extend the battery life of your ONTRAIL 900 headlamp.
Extend the battery life of your ONTRAIL 900 headlamp by adding as many batteries as you need to your trail running bag.
Compatible only with the ONTRAIL 900 headlamp
Extend the battery life of your ONTRAIL 900 headlamp.
The Samsung® battery is replaceable and rechargeable.
IPX 4, resistant to rain and weather.
Size guide

To take your measurements:
|
Chest size: (in cm) |
84-87 | 88-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 | 154-159 |
| Size US | XS | XS/S | S | S/M | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL |
| Size EU | XS | S | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL | 4XL / 5XL | 5XL |
|
70-73 | 74-77 | 78-81 | 82-85 | 86-89 | 90-95 | 96-100 | 101-105 | 106-111 | 112-117 | 118-123 | 124-129 | 130-135 | 136-141 | 142-147 | |
| EU size - Europe | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | |
| Universal size | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
Waist size: (in cm) |
20.25-20.85 | 20.86-21.5 | 21.51-22.15 | 22.16-22.8 | 22.81-23.45 | 23.46-24.1 | 24.11-24.75 |
| Universal size | XS | S | M | L | XL | 2XL | 3XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
|
Chest size: (in cm) |
76-79 | 80-83 | 84-87 | 86-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
|
Under Bust Size: (in cm) |
63-67 | 68-72 | 73-77 | 78-82 | 83-87 | 88-92 | 93-97 | 98-102 | 103-107 | 108-112 | 113-117 |
| Size | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| UK size | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
For high end swimwear with back ties, if your size is not available, you can wear another size with similar band size.
Examples: with a size 95C , you can wear a 100B by tightening the rear link more , or a 90D by tightening the back link less .
| Chest size in cm) | ||||||||
| Section A-A | 72-74 | 77-79 | 82-84 | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 |
| Cut A | 75-77 | 80-82 | 85-87 | 90-92 | 95-97 | 100-102 | 105-107 | 110-112 |
| Cut B | 78-80 | 83-85 | 88-90 | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 |
| Cut C | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 | 106-108 | 111-113 | 116-118 |
| Cut D | 84-86 | 89-91 | 94-96 | 99-101 | 104-106 | 109-111 | 114-116 | 119-121 |
| Cut E | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 | 112-114 | 117-119 | 122-124 |
| Cut F | 90-92 | 95-97 | 100-102 | 105-107 | 111-113 | 115-117 | 120-122 | 125-127 |
| Cut G | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 | 118-120 | 123-125 | 128-130 |
|
Waist size: (in cm) |
57-58 | 58-62 | 63-65 | 66-69 | 70-73 | 74-77 | 78-84 | 85-90 | 91-96 | 97-102 | 103-108 | 109-114 | 115-120 | 121-128 | 129-132 | 133-139 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
| Size: (cm) |
56-59 | 60-63 | 64-67 | 68-71 | 72-75 | 76-79 | 80-93 | 84-89 | 90-95 | 96-101 | 102-107 | 108-113 | 114-119 | 120-125 | 126-131 | 132-137 |
| Hipsize: (cm) |
86-89 | 90-93 | 94-97 | 98-101 | 102-105 | 106-109 | 110-113 | 114-119 | 120-125 | 126-131 | 132-137 | 138-143 | 144-149 | 150-155 | 156-161 | 162-167 |
| EU size - Europe | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 |
| Universal size | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
16.25-17.1 | 17.11-17.95 | 17.96-18.8 | 18.81-19.5 | 19.51-20.1 | 20.11-20.7 | 20.71-21.3 | |
| Universal size | 2XS | XS | S | M | L | XL | 2XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
| Height: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-152 | 153-162 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Size: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-150 | 151-160 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Hand size: (in cm) |
13.9-14.9 | 14.91-15.9 | 15.91-16.9 | 16.91-17.8 | 17.81-18.6 | 18.61-19.45 |
| Universal size | 4 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
|
Head measurement: (in cm) |
41.1 | 43.6 | 44.9 | 45.7 | 47.4 | 48.6 | 49.7 | 50.6 |
| Size | 3 Months | 6 Months | 9 Months | 12 Months | 18 Months | 2 Years | 3 Years | 4 Years |
| Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |
Size guide

To take your measurements:
|
Chest size: (in cm) |
84-87 | 88-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 | 154-159 |
| Size US | XS | XS/S | S | S/M | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL |
| Size EU | XS | S | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL | 4XL / 5XL | 5XL |
|
70-73 | 74-77 | 78-81 | 82-85 | 86-89 | 90-95 | 96-100 | 101-105 | 106-111 | 112-117 | 118-123 | 124-129 | 130-135 | 136-141 | 142-147 | |
| EU size - Europe | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | |
| Universal size | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
Waist size: (in cm) |
20.25-20.85 | 20.86-21.5 | 21.51-22.15 | 22.16-22.8 | 22.81-23.45 | 23.46-24.1 | 24.11-24.75 |
| Universal size | XS | S | M | L | XL | 2XL | 3XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
|
Chest size: (in cm) |
76-79 | 80-83 | 84-87 | 86-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
|
Under Bust Size: (in cm) |
63-67 | 68-72 | 73-77 | 78-82 | 83-87 | 88-92 | 93-97 | 98-102 | 103-107 | 108-112 | 113-117 |
| Size | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| UK size | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
For high end swimwear with back ties, if your size is not available, you can wear another size with similar band size.
Examples: with a size 95C , you can wear a 100B by tightening the rear link more , or a 90D by tightening the back link less .
| Chest size in cm) | ||||||||
| Section A-A | 72-74 | 77-79 | 82-84 | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 |
| Cut A | 75-77 | 80-82 | 85-87 | 90-92 | 95-97 | 100-102 | 105-107 | 110-112 |
| Cut B | 78-80 | 83-85 | 88-90 | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 |
| Cut C | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 | 106-108 | 111-113 | 116-118 |
| Cut D | 84-86 | 89-91 | 94-96 | 99-101 | 104-106 | 109-111 | 114-116 | 119-121 |
| Cut E | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 | 112-114 | 117-119 | 122-124 |
| Cut F | 90-92 | 95-97 | 100-102 | 105-107 | 111-113 | 115-117 | 120-122 | 125-127 |
| Cut G | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 | 118-120 | 123-125 | 128-130 |
|
Waist size: (in cm) |
57-58 | 58-62 | 63-65 | 66-69 | 70-73 | 74-77 | 78-84 | 85-90 | 91-96 | 97-102 | 103-108 | 109-114 | 115-120 | 121-128 | 129-132 | 133-139 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
| Size: (cm) |
56-59 | 60-63 | 64-67 | 68-71 | 72-75 | 76-79 | 80-93 | 84-89 | 90-95 | 96-101 | 102-107 | 108-113 | 114-119 | 120-125 | 126-131 | 132-137 |
| Hipsize: (cm) |
86-89 | 90-93 | 94-97 | 98-101 | 102-105 | 106-109 | 110-113 | 114-119 | 120-125 | 126-131 | 132-137 | 138-143 | 144-149 | 150-155 | 156-161 | 162-167 |
| EU size - Europe | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 |
| Universal size | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
16.25-17.1 | 17.11-17.95 | 17.96-18.8 | 18.81-19.5 | 19.51-20.1 | 20.11-20.7 | 20.71-21.3 | |
| Universal size | 2XS | XS | S | M | L | XL | 2XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
| Height: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-152 | 153-162 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Size: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-150 | 151-160 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Hand size: (in cm) |
13.9-14.9 | 14.91-15.9 | 15.91-16.9 | 16.91-17.8 | 17.81-18.6 | 18.61-19.45 |
| Universal size | 4 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
|
Head measurement: (in cm) |
41.1 | 43.6 | 44.9 | 45.7 | 47.4 | 48.6 | 49.7 | 50.6 |
| Size | 3 Months | 6 Months | 9 Months | 12 Months | 18 Months | 2 Years | 3 Years | 4 Years |
| Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |
Battery for Ontrail 900 headlamp
Default / One size / 8522463
Decathlon Bagatelle
Decathlon Bagatelle
80832
Moka
Maurice
Decathlon Beau Plan
Beautiful Roundabout Plan
21001
Grapefruits
Maurice
Free home delivery from Rs 2,500
We offer several delivery methods:
Free home delivery from Rs 2,500
We offer several delivery methods:
Return and exchange
You have up to 90 days to return your items.
More information via this lien.
Return and exchange
You have up to 90 days to return your items.
More information via this lien.
Extend the battery life of your ONTRAIL 900 headlamp.
Extend the battery life of your ONTRAIL 900 headlamp by adding as many batteries as you need to your trail running bag.
Compatible only with the ONTRAIL 900 headlamp
Extend the battery life of your ONTRAIL 900 headlamp.
The Samsung® battery is replaceable and rechargeable.
IPX 4, resistant to rain and weather.
Extend the battery life of your ONTRAIL 900 headlamp.
You can carry your battery in your backpack. To use the battery in this mode, you must obtain a micro USB cable of sufficient length. You will then be able to connect the battery to the headlamp using this cable. The cable type is: "Micro-USB Type B (M) to Micro-USB Type B (F) USB extension cable"
Extend the battery life of your ONTRAIL 900 headlamp by adding as many batteries as you need to your trail running bag.

Compatible only with the ONTRAIL 900 headlamp

Extend the battery life of your ONTRAIL 900 headlamp.

The Samsung® battery is replaceable and rechargeable.

IPX 4, resistant to rain and weather.
Extend the battery life of your ONTRAIL 900 headlamp.
Extend the battery life of your ONTRAIL 900 headlamp.
You can carry your battery in your backpack. To use the battery in this mode, you must obtain a micro USB cable of sufficient length. You will then be able to connect the battery to the headlamp using this cable. The cable type is: "Micro-USB Type B (M) to Micro-USB Type B (F) USB extension cable"
Extend the battery life of your ONTRAIL 900 headlamp by adding as many batteries as you need to your trail running bag.

Compatible only with the ONTRAIL 900 headlamp

Extend the battery life of your ONTRAIL 900 headlamp.

The Samsung® battery is replaceable and rechargeable.

IPX 4, resistant to rain and weather.
Extend the battery life of your ONTRAIL 900 headlamp.
4.56/5
73 reviews
Very happy, it works every day
Provides great additional autonomy
Very efficient and quick when changing the battery... would deserve to have a longer battery life
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