Photo via optimate1.com
OptiMate
OptiMate 4 Dual Program Charger
$89.95
Battery tender with a CAN-bus mode for BMW and modern electronics.
A nine-step charger that diagnoses, recovers and maintains lead-acid batteries through the winter. The dual program handles standard SAE leads and BMW CAN-bus sockets, and it will not overcharge if you leave it connected for months.
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Where to buy — 1 retailer compared
Live prices from North American retailers. We don't pick a winner for you — every store we track is listed, cheapest first.
Amazon
amazon.comLowest pricePrice shown is our last recorded listing price
$89.95
View at Amazon
Key specs
- modes
- Standard / CAN-bus
- steps
- 9
- output
- 12 V 1 A
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