[Ololadeekundayo]

1. I've found it difficult to get a replacement battery for Cubot t9 smartphone here (Nigeria). Does anyone know another battery that matches it and can be used instead?

2. What is the implication of using a battery rated 4,000 mAh to replace one rated say 2100 mAh, other parameters being equal?

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2. What is the implication of using a battery rated 4,000 mAh to replace one rated say 2100 mAh, other parameters being equal?

The implication is;

The higher rated mAh of a battery has no effect on electronic devices other then to allow longer term use between charges.

[zep516]

2. What is the implication of using a battery rated 4,000 mAh to replace one rated say 2100 mAh, other parameters being equal?

The implication is;

The higher rated mAh of a battery has no effect on electronic devices other then to allow longer term use between charges.