51913 (NTS51913) Sealed Numax Motorbike Battery MB12V20P
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Our recommended replacement is below.
51913 BMW Powerline Motorcycle Battery 12V 20Ah (12V20P)
Technical Specification
Customer Rating |
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4.6 From 48 Reviews |
Terminals | ![]() ![]() |
Brand | Numax |
Voltage | 12 Volts |
Technology | AGM |
Capacity (C20) | 21 Ah |
CCA (EN) | 230 A |
Length | 183 mm |
Width | 79 mm |
Height inc. terms | 171 mm |
Guarantee | 1 Year |
Barcode (EAN) | 5060589413177 |
View AllLatest Customer Reviews
Excellent service and price as always!
5
MA - King's Lynn, United Kingdom -

Fitted To: BMW R80 800cc
Great battery does the job well on my BMW R1150R 2005
5
DF - Paignton, United Kingdom -

Fitted To: BMW R1150R 1130 2005
Slipped into my R1100 RS like a dream. Thanks again.
5
KC - SUNDERLAND, United Kingdom -

sent faulty power line battery. was changed for this batt. very quick and efficient customer service. this batt also slightly more expensive no extra charge. very happy
5
sr - usk, United Kingdom -

Fitted To: bmw k1600gt
This battery has failed after six months , won't hold a charge. Falls to 12 .4 v after a few hours from being charged. Left me stranded . Cheap rubbish.
1
JM - DURSLEY, United Kingdom -

Fitted To: Bmw R1150 1150 03
Description
NTS51913 Numax Motorcycle Battery
Numax Batteries are a UK brand supplying high quality batteries for the budget to mid price point for the UK and Ireland. Founded in 1997. Formerly known as Snowdon Batteries, the company changed its name in order to broaden appeal across Europe. Numax are now one of the biggest battery names delivering car, commercial, leisure, marine, mobility, motorbike and industrial batteries all across Europe and the world.
Numax Motorcycle Batteries
Numax motorcycle batteries offer great performance at a budget price. Once again, the range is vast covering almost every size of bike battery ever made. Charged and ready to go from purchase.
AGM Motorcycle batteries are much more resistant to vibration than flooded WET batteries. This being a huge advantage in the motorcycle world. AGM batteries have longer life span, can produce higher voltage for more cranking power. AGM batteries recharge up to five times faster than standard flooded battery.
Maintenance Free
Other References
51913, MB12V20P
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