What jump starter should we buy for our minibus?

My village charity group operates a Citroen Relay minibus. As a starting backup we would like to purchase a Battery Power Pack for emergency use should the vehicle battery become flat for any reason. Are there any reasonably priced items that you could recommend?
DB Power make very decent portable jump starters. This jump starter is able to jump start 12V vehicles (up to 3.0L petrol or 2.5L diesel engine) with 500A peak current and 12000mAh battery capacity, it's about £60: amzn.to/2YZc4nV

The cheaper option is the £30 DB Power jump pack, which can jump-start smaller engines: amzn.to/2I62PM0

Our Top 10: Jump Starters 2019 are here: kit.honestjohn.co.uk/top-tens/top-10-jump-starters/
Answered by Georgia Petrie on

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