Question: what is the maximum amount you can put on an electric key british gas?
Answer: Your electricity meter can hold up to a total of £255, as can your electricity key. This means at any one time you can have a maximum of £510 on your meter and key. Gas meters have no limit, so you can top up as much as you like. For electricity meters, you can top up from £5, and with gas from as little as £1.